Chile Relleno casserole is one of those dishes that just screams comfort to me. I remember my mom making a version of this when I was a kid, and the aroma of roasted peppers and melting cheese would fill our entire house. It felt like a special occasion, even on a Tuesday! This recipe is my easy Chile Relleno casserole adaptation, and it captures all those warm, cheesy, slightly smoky flavors without the tricky frying part. If you’ve ever wondered how to make Chile Relleno casserole at home, this is your sign to try it. It’s a guaranteed crowd-pleaser that smells as amazing as it tastes. Let’s get cooking!
Why You’ll Love This Chile Relleno Casserole
This dish is an absolute winner for so many reasons. Get ready to add this easy baked Chile Relleno to your go-to recipe collection!
- Incredible Flavor: Rich, smoky poblano peppers meld perfectly with gooey Monterey Jack cheese and a fluffy egg base for a truly delicious bite.
- Quick Prep Time: You can have this assembled and ready for the oven in under 30 minutes, making it ideal for busy weeknights.
- Healthier Option: As a vegetarian Chile Relleno casserole, it’s packed with protein from the eggs and cheese, offering a lighter alternative to traditional fried versions.
- Budget-Friendly: Uses simple, affordable ingredients that create a gourmet-tasting meal without breaking the bank.
- Family Favorite: Even picky eaters will love the mild spice and comforting cheesy goodness of this vegetarian Chile Relleno casserole.
- Versatile: It’s perfect for brunch, lunch, or a satisfying dinner, and pairs wonderfully with simple sides.
Ingredients for Chile Relleno Casserole
Gathering these ingredients is the first step to your delicious Chile Relleno casserole with cheese. The beauty of this dish lies in its simplicity and the way these components come together for that authentic flavor.
- 4 large Poblano Peppers – these are key for that classic roasted pepper taste
- 2 cups Monterey Jack Cheese, shredded – it melts beautifully for that gooey, cheesy pull
- 6 large Eggs – the binder that gives the casserole its fluffy texture
- 1 cup All-Purpose Flour – helps create structure in the batter
- 1 cup Milk – adds moisture and richness to the batter
- 1 tbsp Baking Powder – essential for a light and airy casserole
- 1 tsp Sea Salt – enhances all the flavors
- 1/2 tsp Black Pepper – for a touch of warmth
- 2 cups Roma Tomatoes, chopped – forms the base of our vibrant sauce
- 1 medium Yellow Onion, diced – adds sweetness and depth to the sauce
- 1 medium Jalapeño Pepper, minced – for a little kick in the sauce (seeds removed for less heat)
- 3 cloves Garlic, minced – boosts the savory notes
- 2 tbsp Avocado Oil – for sautéing the sauce ingredients
- 1 large Corn Tortilla, torn – helps thicken the sauce naturally
- 1 tbsp Chicken Bouillon – adds savory depth to the sauce
- 1 tsp Oregano – a classic Mexican herb
- 1/2 cup Water – to blend the sauce
- 1/4 cup Fresh Cilantro, chopped – for a fresh garnish
- Lime Wedges, Sour Cream, Avocado Slices, Hot Sauce – optional garnishes to customize your plate
How to Make Chile Relleno Casserole
Get ready to create a truly amazing dish with these simple steps. This recipe makes preparing a delicious baked Chile Relleno casserole easier than ever!
- Step 1: Preheat your oven to broil. Arrange the poblano peppers on a baking sheet and roast them until the skin is nicely blackened and blistered, about 6-8 minutes.
- Step 2: Carefully transfer the hot peppers into a zip-top bag and seal it. Let them steam for about 10 minutes; this makes peeling them a breeze.
- Step 3: Once cooled slightly, carefully peel the charred skin from the peppers. Cut them open, discard the seeds and stems, and set the roasted poblano halves aside.
- Step 4: Preheat your oven to 350°F (175°C). Lightly spray an 8-inch baking dish with cooking spray to prevent sticking.
- Step 5: In a large mixing bowl, whisk the egg whites until they form stiff peaks. Then, gently fold in the egg yolks, 1 cup all-purpose flour, 1 cup milk, 1 tbsp baking powder, 1 tsp sea salt, and 1/2 tsp black pepper. Mix until just combined, being careful not to overmix.
- Step 6: Pour half of the fluffy batter into your prepared baking dish. Arrange half of the roasted poblano pepper halves over the batter, then sprinkle with half of the shredded Monterey Jack cheese.
- Step 7: Repeat the layering process: add the remaining batter, followed by the rest of the poblano peppers and Monterey Jack cheese.
- Step 8: Bake the casserole in the preheated oven for approximately 30 minutes. You’ll know it’s ready when it’s puffed up beautifully and has a lovely golden-brown hue. This is your perfect baked Chile Relleno casserole!
- Step 9: While the casserole is baking, prepare the vibrant sauce. Heat 2 tbsp avocado oil in a skillet over medium heat. Add the chopped Roma tomatoes, diced yellow onion, minced jalapeño, and minced garlic. Sauté until they are softened and slightly charred, about 5-7 minutes.
- Step 10: Transfer the sautéed sauce ingredients to a blender. Add the torn large corn tortilla, 1 tbsp chicken bouillon, 1 tsp oregano, and 1/2 cup water. Blend until the sauce is wonderfully smooth and creamy.
- Step 11: Let the casserole cool for 5-10 minutes before slicing. This allows the flavors to meld and makes for cleaner slices of your baked Chile Relleno casserole. Serve generous portions topped with the homemade sauce and your favorite garnishes.
Pro Tips for the Best Chile Relleno Bake
Want to elevate your Chile Relleno bake? Follow these simple tips to achieve perfection every time.
- Roast your poblanos until they are nicely charred for the deepest smoky flavor.
- Don’t overmix the batter after adding the flour and milk; a gentle fold is best for a light texture.
- Let the casserole rest for a few minutes after baking; this helps it set up and makes slicing much cleaner.
- Add a pinch of cayenne pepper to the batter for a subtle warmth that complements the cheese.
What’s the secret to perfect Chile Relleno bake?
The secret to a truly perfect Chile Relleno bake, leaning towards an authentic Chile Relleno casserole experience, lies in properly roasting the poblanos and not overmixing the batter. A gentle touch ensures a fluffy texture.
Can I make Chile Relleno Casserole ahead of time?
Yes! You can assemble this Chile Relleno Casserole up to 24 hours in advance. Cover it tightly and refrigerate. You might need to add a few extra minutes to the baking time if it’s coming straight from the fridge.
How do I avoid common mistakes with Chile Relleno Casserole?
A common mistake is overmixing the batter, which leads to a dense casserole. Another pitfall is not roasting the peppers enough, which affects the smoky flavor. Ensure you also use fresh baking powder for the best rise.
Best Ways to Serve Chile Relleno Casserole
This delightful Chile Relleno Casserole is so versatile, it works for any meal! For a truly satisfying dinner, I love pairing a thick slice with a side of fluffy Mexican rice and some seasoned black beans. The textures and flavors complement each other beautifully. If you’re looking for something lighter or for brunch, a dollop of sour cream and a sprinkle of fresh cilantro on top makes it a wonderfully creamy Chile Relleno casserole on its own. Don’t forget some avocado slices on the side for extra richness!
Nutrition Facts for Chile Relleno Casserole
Here’s a breakdown of the nutritional information per serving for this delicious Chile Relleno Casserole. It’s a satisfying vegetarian option that’s packed with flavor!
- Calories: 360 kcal
- Fat: 22 g
- Saturated Fat: 10 g
- Protein: 20 g
- Carbohydrates: 24 g
- Fiber: 3 g
- Sugar: 4 g
- Sodium: 600 mg
Nutritional values are estimates and may vary based on specific ingredients used.
How to Store and Reheat Chile Relleno Casserole
This easy baked Chile Relleno is fantastic for leftovers, making it perfect for meal prep. Once your delicious casserole has cooled completely, transfer any remaining portions into an airtight container. It will stay fresh in the refrigerator for about 3 to 4 days. If you want to keep it even longer, you can freeze the assembled casserole before baking, or freeze individual cooled slices. Properly stored, it can last in the freezer for up to 3 months.
To reheat, you have a couple of great options. For the best texture, I recommend reheating individual slices in a 350°F (175°C) oven until warmed through, which usually takes about 10-15 minutes. You can also gently reheat it in the microwave, covering it with a damp paper towel to help maintain moisture.
Frequently Asked Questions About Chile Relleno Casserole
What makes this Chile Relleno Casserole recipe so special?
This Chile Relleno Casserole recipe stands out because it offers all the beloved comforting flavors of traditional chile rellenos without the fuss of frying. I love that it uses simple, wholesome ingredients and comes together relatively quickly, making it perfect for weeknights or casual gatherings. The combination of roasted poblano peppers, melty cheese, and a light, fluffy egg batter is truly irresistible.
Can I make this Chile Relleno Casserole with different types of peppers?
Absolutely! While poblano peppers are traditional and offer a wonderful mild heat and smoky flavor, you can experiment. Anaheim peppers are a great substitution if you prefer something even milder. For a spicier kick, you could try incorporating a roasted jalapeño into the layers or using a spicier pepper altogether. Just remember to adjust the seeds and membranes based on your heat preference for your homemade Chile Relleno Casserole.
What are some good side dishes to serve with Chile Relleno Casserole?
This casserole is quite hearty on its own, but it pairs wonderfully with simple sides that complement its Mexican-inspired flavors. A fresh green salad with a lime vinaigrette or some seasoned black beans are always fantastic choices. You could also serve it with a side of Mexican rice or some warm corn tortillas. For a truly complete meal, consider some simple pico de gallo or guacamole.
Can I freeze this Chile Relleno Casserole before baking?
Yes, you can definitely freeze this Chile Relleno Casserole before baking! Assemble it completely in your baking dish, cover it tightly with plastic wrap and then foil, and freeze for up to 2 weeks. When you’re ready to cook, thaw it overnight in the refrigerator and then bake as directed, possibly adding an extra 10-15 minutes to the cooking time since it will be starting from cold.
Variations of Chile Relleno Casserole You Can Try
Once you’ve mastered the classic, why not get creative? There are so many delicious ways to adapt this wonderful dish. Here are a few ideas to shake things up and explore different flavor profiles.
- Spicy Chile Relleno Casserole: For those who love a little heat, incorporate a roasted jalapeño or serrano pepper into the layers of the casserole itself, or add a pinch of cayenne pepper to the batter. You can also top it with a spicier salsa or hot sauce.
- Deconstructed Chile Relleno: Serve the components separately! Roast the peppers, prepare the cheesy egg mixture, and make the sauce. Let everyone build their own plate, combining the elements as they please. This is a fun way to present the dish.
- Gluten-Free Chile Relleno Casserole: Easily make this recipe gluten-free by using a gluten-free flour blend in the batter, or even almond flour for a slightly different texture. Ensure your bouillon is also gluten-free.
- Creamy Chile Relleno Casserole: For an extra creamy texture, you can fold in a bit of sour cream or cream cheese into the egg batter, or top the finished casserole with a drizzle of Mexican crema before serving.

Chile Relleno Casserole: Your Amazing Comfort Dish
- Total Time: 1 hour
- Yield: 6 servings 1x
- Diet: Vegetarian
Description
Discover an irresistible and easy Chile Relleno Casserole, a comforting dish perfect for cozy nights. This recipe combines roasted poblano peppers, melty Monterey Jack cheese, and fluffy baked eggs, all topped with a velvety homemade tomato sauce. It offers the rich flavors of Mexican cuisine without the fuss of frying, making it a simple, vegetarian, and satisfying meal.
Ingredients
- For the Casserole:
- 4 large Poblano Peppers
- 2 cups Monterey Jack Cheese
- 6 large Eggs
- 1 cup All-Purpose Flour
- 1 cup Milk
- 1 tbsp Baking Powder
- 1 tsp Sea Salt
- 1/2 tsp Black Pepper
- For the Sauce:
- 2 cups Roma Tomatoes
- 1 medium Yellow Onion
- 1 medium Jalapeño Pepper
- 3 cloves Garlic
- 2 tbsp Avocado Oil
- 1 large Corn Tortilla
- 1 tbsp Chicken Bouillon
- 1 tsp Oregano
- 1/2 cup Water
- For Garnish:
- 1/4 cup Fresh Cilantro
- Lime Wedges (optional)
- Sour Cream (optional)
- Avocado Slices (optional)
- Hot Sauce (optional)
Instructions
- Preheat your oven to broil. Place poblano peppers on a baking sheet and roast until the skin is blackened, about 6-8 minutes.
- Transfer the roasted peppers to a zip-lock bag and let them steam for about 10 minutes.
- Carefully peel the charred skin from the peppers, discard the seeds and stems, and set aside.
- Preheat your oven to 350°F (175°C). Lightly spray an 8-inch baking dish with cooking spray.
- In a mixing bowl, whisk egg whites until stiff peaks form. Gently fold in the egg yolks, all-purpose flour, milk, baking powder, sea salt, and black pepper until well combined.
- Pour half of the batter into the prepared baking dish. Layer with half of the roasted poblano peppers and half of the Monterey Jack cheese.
- Repeat the layering process with the remaining batter, peppers, and cheese.
- Bake the casserole in the preheated oven for about 30 minutes, or until it has puffed up and is golden brown.
- Allow the casserole to cool for 5-10 minutes before slicing.
- While the casserole bakes, prepare the sauce: In a skillet, sauté diced Roma tomatoes, chopped yellow onion, jalapeño, and garlic until charred and softened.
- Blend the sautéed mixture with chicken bouillon, oregano, and water until smooth.
- Serve slices of the Chile Relleno casserole with the homemade sauce spooned on top. Garnish with fresh cilantro and any optional toppings like lime wedges, sour cream, or avocado slices.
Notes
- For a milder flavor, substitute poblano peppers with Anaheim peppers.
- Ensure your baking powder is fresh for the best leavening results.
- Adjust salt to your taste preference.
- Freshly cracked black pepper is recommended for optimal flavor.
- If you prefer a dairy-free option, use plant-based milk and cheese.
- For a gluten-free version, use gluten-free flour.
- If you want a milder sauce, omit the jalapeño pepper or replace it with a bell pepper.
- Roasted garlic can be used in the sauce for added sweetness.
- Olive oil can be used as an alternative to avocado oil for the sauce.
- Regular corn tortillas can be used instead of the specified large one.
- Vegetable bouillon can be substituted for chicken bouillon for a vegetarian option.
- Allow the casserole to cool for 5-10 minutes after baking to help the flavors meld and make slicing easier.
- Store any leftovers in an airtight container in the refrigerator for up to 3 days.
- Reheat leftovers in the oven at 350°F (175°C) for optimal texture.
- The casserole can be assembled up to 24 hours in advance and refrigerated before baking.
- For longer storage, assemble and freeze the casserole for up to 2 weeks, thawing overnight in the refrigerator before baking.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Category: Dinner
- Method: Baking
- Cuisine: Mexican
Nutrition
- Serving Size: 1 slice
- Calories: 360 kcal
- Sugar: 4 g
- Sodium: 600 mg
- Fat: 22 g
- Saturated Fat: 10 g
- Unsaturated Fat: 7 g
- Trans Fat: 0 g
- Carbohydrates: 24 g
- Fiber: 3 g
- Protein: 20 g
- Cholesterol: 220 mg