(Easy Cheesy Roasted Poblano Casserole)
Delicious Chile Relleno Casserole gives you all the wonderful flavors of traditional chiles rellenos without individually stuffing, battering, and frying each pepper. Layers of smoky roasted poblano peppers, plenty of melted cheese, and a fluffy seasoned egg mixture bake together into a golden, cheesy casserole that’s perfect for breakfast, brunch, or dinner.
Full Recipe (Ingredients + Instructions)
Ingredients 🌶️🧀
For the Casserole
- 6 large poblano peppers
- 2 cups shredded Monterey Jack cheese
- 1½ cups shredded cheddar cheese
- 1 cup shredded Oaxaca or Chihuahua cheese
- 8 large eggs
- 1 cup whole milk
- ½ cup heavy cream
- ¼ cup all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon ground cumin
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon Mexican oregano
- ½ teaspoon salt
- ¼ teaspoon black pepper
For the Tomato Sauce 🍅
- 1 tablespoon olive oil
- ½ small onion, finely diced
- 2 garlic cloves, minced
- 1 can (15 oz) tomato sauce
- ½ cup chicken broth
- ½ teaspoon cumin
- ½ teaspoon Mexican oregano
- Salt and pepper, to taste
Optional Toppings
- Mexican crema or sour cream
- Queso fresco
- Fresh cilantro
- Diced tomatoes
- Avocado
- Salsa
- Green onions
Instructions
Step 1: Roast the Poblano Peppers 🌶️
Place the poblano peppers under the broiler, on a grill, or directly over a gas flame.
Roast until the skins are blackened and blistered on all sides.
Transfer them to a covered bowl or plastic bag and allow them to steam for about 10–15 minutes.
Peel away the loose charred skins.
Carefully remove the stems and seeds while keeping the peppers in large pieces.
Step 2: Make the Tomato Sauce 🍅
Heat olive oil in a saucepan over medium heat.
Add onion and cook for 3–4 minutes.
Add garlic and cook for another 30 seconds.
Stir in:
- Tomato sauce
- Chicken broth
- Cumin
- Mexican oregano
- Salt
- Black pepper
Simmer for 10 minutes, then set aside.
Step 3: Prepare the Egg Mixture 🥚
In a large bowl, whisk the eggs until light and fluffy.
Add:
- Milk
- Heavy cream
- Flour
- Baking powder
- Cumin
- Garlic powder
- Onion powder
- Mexican oregano
- Salt
- Black pepper
Whisk until mostly smooth.
Step 4: Layer the Casserole 🧀
Preheat oven to 375°F (190°C).
Lightly grease a 9×13-inch baking dish.
Arrange half of the roasted poblano peppers across the bottom.
Cover with:
- 1 cup Monterey Jack
- ¾ cup cheddar
- ½ cup Oaxaca cheese
Add the remaining poblano peppers.
Sprinkle another generous layer of cheese over the peppers.
Don’t be shy with the cheese! 😍🧀
Step 5: Add the Egg Mixture
Slowly pour the egg mixture evenly over the poblano and cheese layers.
Gently shake the baking dish so the mixture settles between the peppers.
Finish with the remaining cheese.
Step 6: Bake 🔥
Bake uncovered for approximately 35–45 minutes, or until:
✅ The center is set
✅ The edges are golden
✅ The cheese is melted and bubbling
✅ A knife inserted near the center comes out mostly clean
If the cheese starts browning too quickly, loosely cover the casserole with foil.
Step 7: Rest & Serve
Let the casserole rest for 10–15 minutes before slicing.
Spoon a little warm tomato sauce over each serving.
Finish with:
🌿 Fresh cilantro
🧀 Queso fresco
🥣 Mexican crema
🥑 Avocado
Serve warm and enjoy!
Extra Recipe Tips & Variations ✨
🥩 Ground Beef Chile Relleno Casserole
Brown 1 pound ground beef with onion, garlic, cumin, salt, and pepper.
Layer it between the poblanos and cheese for a hearty dinner version.
🍗 Chicken Chile Relleno Casserole
Add 2 cups shredded chicken between the layers.
Rotisserie chicken makes this version especially easy.
🌶️ Hatch Green Chile Version
Replace some or all of the poblanos with roasted Hatch green chile.
🧀 Extra Cheese Version
Combine:
- Monterey Jack
- Oaxaca
- Chihuahua
- Cheddar
- Pepper Jack
for an incredibly cheesy casserole.
🌽 Corn & Green Chile Version
Add 1 cup roasted corn and chopped green chile.
🔥 Spicy Version
Add diced jalapeños or serrano peppers and use Pepper Jack cheese.
Flavor Upgrades / Secret Tips 🔥
✅ Roast the poblanos well. The charred skin gives the peppers their wonderful smoky flavor.
✅ Don’t rinse roasted peppers under water if possible—it washes away some of their flavor.
✅ Pat the peppers dry before layering so the casserole doesn’t become watery.
✅ Freshly shredded cheese melts much better than packaged pre-shredded cheese.
✅ Whisk the eggs thoroughly for a lighter, fluffier casserole.
✅ Let the casserole rest before cutting. This allows the layers to set and gives you cleaner slices.
Serving Ideas 🍽️
Serve your Chile Relleno Casserole with:
🍚 Mexican rice
🫘 Refried beans
🥑 Guacamole
🍅 Fresh pico de gallo
🌽 Mexican street corn
🌶️ Salsa verde
🥣 Mexican crema
🌮 Warm flour or corn tortillas
For a complete plate, add Mexican rice, refried beans, avocado, and warm tortillas. ❤️
Storage & Meal Prep Tips 🥡
Refrigerator
Cover and refrigerate leftovers for up to 4 days.
Freezer
Individual portions can be frozen for up to 2 months.
Reheating
Reheat covered in a 325°F (165°C) oven until warmed through.
Individual portions can also be reheated in the microwave.
Make Ahead
Roast and peel the poblanos a day ahead.
You can also assemble the entire casserole the night before, refrigerate it, and bake it the following day.
Nutrition Facts
Approximate per serving (1 of 10):
- Calories: 340–420 kcal
- Protein: 20–25 g
- Carbohydrates: 10–15 g
- Fat: 24–30 g
- Fiber: 2–3 g
Nutrition varies depending on the cheeses and toppings used.
Frequently Asked Questions (Q&A)
Q: Is Chile Relleno Casserole spicy?
A: Poblanos are generally mild with an earthy chile flavor, although individual peppers can occasionally be hotter.
Q: Do I have to roast the peppers first?
A: Roasting is strongly recommended. It softens the peppers and gives them the classic smoky flavor associated with chile rellenos.
Q: Can I use canned whole green chiles?
A: Yes. Drain and pat them dry before layering them into the casserole.
Q: Can I add meat?
A: Absolutely. Seasoned ground beef, shredded chicken, chorizo, or shredded pork all work beautifully.
Q: Can I prepare this the night before?
A: Yes. Assemble, cover, refrigerate overnight, and bake the next day.
Social Media Captions ❤️
Facebook Style
“All the delicious flavor of Chile Rellenos without standing over the stove frying them one by one! 🌶️🧀❤️ This Chile Relleno Casserole is layered with smoky roasted poblanos, lots of melted cheese, and a fluffy seasoned egg mixture. Easy, cheesy, and perfect for breakfast OR dinner!”
Instagram Style
“Roasted poblanos + layers of melted cheese = my kind of casserole! 🌶️🧀🔥”
Short Viral Caption
“All the Chile Relleno flavor, none of the frying! 🌶️🧀😍”
Engagement Caption
“Would you make your Chile Relleno Casserole with just CHEESE 🧀 or add GROUND BEEF 🥩?”
Family-Style Caption
“Some recipes just belong in the middle of the family table. ❤️🌶️ A big pan of cheesy Chile Relleno Casserole, rice and beans on the side, and everybody helping themselves to seconds!”
Final Food Description 🍴
Delicious Chile Relleno Casserole is a warm, cheesy Mexican-inspired bake featuring layers of smoky roasted poblano peppers, Monterey Jack, cheddar, and Oaxaca cheese held together by a light, seasoned egg mixture. Finished with warm tomato sauce and your favorite toppings, it delivers the comforting flavors of chile rellenos in an easy casserole that’s perfect for sharing. 🌶️🧀🥚🇲🇽❤️