If you’re craving that cozy comfort food with a zesty kick, this Chile Rellenos Casserole Recipe is about to become your new go-to dish. It captures the irresistible flavors of classic chile rellenos but simplifies them into a delightful layered casserole that’s perfect for weeknights or sharing with friends. With tender green chiles nestled between gooey Monterey Jack and sharp cheddar cheeses, all bound together in a light, fluffy egg-based custard, every bite offers a mouthwatering combination of creamy, spicy, and savory goodness.

Ingredients You’ll Need
As simple as it sounds, the magic of this chile rellenos casserole lies in the quality and balance of its ingredients. Each element plays its part—green chiles contribute the gentle heat and depth, cheeses provide the melty richness, and the custard mixture brings it all together with a tender, airy texture.
- Whole green chiles (2 cans, 7 oz each), drained and patted dry: These form the flavorful base offering just the right amount of mild heat and smokiness.
- Monterey Jack cheese (2 cups, shredded): Known for its creamy melt, it adds smoothness and a slightly tangy note.
- Cheddar cheese (1 cup, shredded): Its sharpness complements the mildness of the Jack and enhances the overall flavor profile.
- Large eggs (4): They bind everything together and create the fluffy, delicate custard layer.
- All-purpose flour (1/2 cup): Keeps the custard stable while lightening the texture.
- Milk (1 1/2 cups): Adds moisture and creaminess, perfect for a smooth custard.
- Baking powder (1/2 teaspoon): Helps the casserole puff up nicely as it bakes.
- Salt (1/2 teaspoon): Enhances all the other flavors without overpowering.
- Black pepper (1/4 teaspoon): Offers a subtle touch of spice to balance the dish.
How to Make Chile Rellenos Casserole Recipe
Step 1: Prepare Your Baking Dish and Layers
Start by preheating your oven to 350°F (175°C) and lightly greasing a 9×13-inch baking dish to prevent sticking. Lay half of the green chiles flat on the bottom of the dish. If the chiles are folded or curled, gently open them up so they cover the surface evenly—this ensures every bite has that chile goodness. Next, sprinkle half of the Monterey Jack and cheddar cheeses right on top, creating a luscious cheesy layer that will melt beautifully.
Step 2: Create the Second Layer
Repeat the process with the remaining chiles and cheeses to build a stacked masterpiece of flavor. Having those two distinct layers of chiles and cheese creates a satisfying texture and flavor distribution that makes this casserole so addictive.
Step 3: Whisk Up the Custard Mixture
In a medium bowl, combine the eggs, all-purpose flour, milk, baking powder, salt, and black pepper. Whisk everything together vigorously until your custard is smooth and slightly frothy—it’s this mixture that transforms the casserole from ingredients into that perfectly set, fluffy dish you’ll fall in love with.
Step 4: Pour and Bake
Pour the egg mixture evenly over the layered chiles and cheese. Don’t worry if it looks a little loose; it will firm up as it bakes. Slide the dish into your preheated oven and bake for 40 to 45 minutes. You’ll know it’s ready when the casserole is puffed up with a gorgeous golden color and feels set in the center. Resist the temptation to cut in right away—letting it rest for 10 minutes helps the custard settle so slices hold their shape perfectly.
How to Serve Chile Rellenos Casserole Recipe

Garnishes
To elevate your serving, consider a sprinkle of fresh chopped cilantro for a burst of herbal brightness or a dollop of cooling sour cream to balance the casserole’s richness. A drizzle of your favorite salsa adds the perfect zing and a pop of color that will impress your guests.
Side Dishes
This casserole pairs wonderfully with fresh, crisp salads—think a tangy lime and avocado salad or a crunchy cabbage slaw. For a heartier meal, some warm Mexican rice or charro beans round out the plate and keep the festive vibes alive.
Creative Ways to Present
Want to surprise your friends? Serve the chile rellenos casserole in mini ramekins for individual portions at your next gathering or layer it in a clear glass dish to show off those tempting green chile and cheese layers. It’s a visually stunning dish that’s just as delicious as it looks.
Make Ahead and Storage
Storing Leftovers
After enjoying your casserole, you might want to keep the party going the next day. Simply cover the leftovers tightly with foil or store in an airtight container in the fridge. It will stay fresh for up to 3 days and remain just as tasty.
Freezing
If you want to save some for a later date, this dish freezes beautifully. Wrap it securely with plastic wrap and aluminum foil or place it in a freezer-safe container. It can be frozen for up to 2 months without losing its flavor or texture.
Reheating
Reheat your casserole in a preheated oven at 350°F (175°C) for about 20 minutes or until warmed through. Avoid microwaving to maintain its fluffy texture and prevent it from getting soggy. A gentle reheat brings back all that wonderful cheesy goodness.
FAQs
Can I use fresh poblano peppers instead of canned green chiles?
Absolutely! Roasting fresh poblano peppers adds a deeper, smoky flavor that elevates the casserole, but be sure to remove the skins and seeds before layering.
Is this recipe gluten-free?
The classic recipe uses all-purpose flour, which contains gluten, but you can swap in a gluten-free flour blend to make it friendly for gluten-free diets without compromising texture.
Can I add meat to this Chile Rellenos Casserole Recipe?
For a heartier twist, cooked ground beef or chorizo can be added between the layers. It’s a delicious way to turn this into a filling main course for meat lovers.
What’s the best way to reheat the casserole?
Reheat in the oven rather than the microwave to preserve the texture. Cover it loosely with foil to prevent drying out, heating at 350°F until warmed through.
How spicy is this casserole?
Since the green chiles are mild, this casserole has just a gentle heat. You can adjust by choosing hotter chiles or adding a pinch of cayenne if you like more spice.
Final Thoughts
This Chile Rellenos Casserole Recipe is truly a winner whether you’re craving something comforting, cheesy, or vibrantly flavorful. It’s easy enough to whip up on a busy weeknight, yet impressive enough to serve to loved ones. Trust me, once you taste those layers of green chiles mingling with melting cheese and that fluffy custard base, it will quickly earn a permanent spot in your recipe collection. Give it a try—you’re going to love every bite!
Print
Chile Rellenos Casserole Recipe
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: 6 servings
- Category: Main Course
- Method: Baking
- Cuisine: Mexican-American
- Diet: Vegetarian
Description
This Chile Rellenos Casserole is a delightful baked dish featuring layers of whole green chiles and a blend of Monterey Jack and cheddar cheeses, all enveloped in a fluffy egg batter. Perfect for a comforting Mexican-American vegetarian meal, this casserole combines smoky, cheesy, and mildly spicy flavors with an easy preparation that makes it ideal for weeknight dinners or casual gatherings.
Ingredients
Green Chiles and Cheese
- 2 cans (7 oz each) whole green chiles, drained and patted dry
- 2 cups shredded Monterey Jack cheese
- 1 cup shredded cheddar cheese
Batter
- 4 large eggs
- 1/2 cup all-purpose flour
- 1 1/2 cups milk
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
Instructions
- Preheat and Prepare Dish: Preheat your oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish to prevent sticking.
- Layer Chiles and Cheese: Spread half of the green chiles flat along the bottom of the dish, opening them gently if needed. Sprinkle half of the Monterey Jack and cheddar cheese evenly over the chiles. Repeat this process to create a second layer with the remaining chiles and cheese.
- Make Egg Batter: In a medium bowl, whisk together the eggs, flour, milk, baking powder, salt, and black pepper until you achieve a smooth, uniform batter.
- Pour Batter and Bake: Carefully pour the egg mixture evenly over the layered chiles and cheese. Bake in the preheated oven for 40 to 45 minutes until the casserole is puffed up, golden brown on top, and set in the center.
- Rest and Serve: Remove the casserole from the oven and allow it to rest for 10 minutes before slicing. This helps the casserole set and makes it easier to serve. Enjoy with your favorite toppings like salsa, sour cream, or chopped cilantro.
Notes
- Use freshly roasted poblano peppers instead of canned green chiles for enhanced flavor.
- Add cooked ground beef or chorizo between layers to make a heartier casserole.
- Serve hot with salsa, sour cream, or freshly chopped cilantro for added freshness and flavor.