Name: Cheesy Poblano Chili Relleno Casserole Recipe
Prep time: 15 min
Cook time: 45 min
Total time: PT-497353H31M50S
Cuisine: Mexican
Ingredients: Cooking spray; 2 (7 ounce) cans whole poblano peppers, drained; 8 ounces Monterey Jack cheese, shredded; 8 ounces Cheddar cheese, shredded; 2 large eggs; 1 (5 ounce) can evaporated milk; 2 tablespoons all-purpose flour; ½ cup milk, or as needed; 1 (8 ounce) can enchilada sauce or tomato sauce

Jump to Recipe· 4.1 from 70 reviews

If you adore the comforting flavors of traditional chili rellenos but crave a fuss-free, family-friendly twist, the Cheesy Poblano Chili Relleno Casserole Recipe is a total game-changer. It captures all the smoky, cheesy goodness of a classic chile relleno in an easy-to-assemble casserole, perfect for busy weeknights or casual dinner parties. This dish layers tender poblano peppers with gooey Monterey Jack and Cheddar cheeses, all baked to bubbling perfection with a luscious sauce finish. Trust me, once you try this casserole, it will become your go-to for that crave-worthy Mexican-inspired meal without hours in the kitchen.

Ingredients You'll Need

The image shows seven small clear glass bowls on a white marbled surface. One bowl is filled with bright orange shredded cheese, another with light yellow shredded cheese, and another with whole green jalapeños. There is a bowl with two light brown eggs, one with white powder, one with a smooth pale beige creamy sauce, one with yellow oil or dressing, and one with white milk-like liquid. The bowls are arranged loosely close to each other. photo taken with an iphone --ar 4:5 --v 7

Straightforward and full of flavor, the ingredients for this Cheesy Poblano Chili Relleno Casserole Recipe are simple but essential for achieving perfect texture and rich, satisfying taste. Each component works harmoniously to bring out the smoky spice of the poblanos and the creamy cheesy layers that make every bite irresistible.

Cooking spray: Prevents sticking and helps with even browning of the casserole.

2 (7 ounce) cans whole poblano peppers, drained: These add the mild heat and smokiness fundamental to the dish’s character; you can also use roasted fresh poblanos.
8 ounces Monterey Jack cheese, shredded: Melts beautifully for a smooth, mild cheesy layer.
8 ounces Cheddar cheese, shredded: Adds sharpness and depth to balance the creamy Jack cheese.

2 large eggs: Binds the casserole together and lends richness.
1 (5 ounce) can evaporated milk: Provides creaminess without watering down the flavors.
2 tablespoons all-purpose flour: Thickens the egg and milk mixture for just the right consistency.

½ cup milk, or as needed: Used to adjust the egg mixture’s thickness to ensure a silky pour over the peppers.
1 (8 ounce) can enchilada sauce or tomato sauce: A savory topping that adds zesty tomato undertones and moisture.

How to Make Cheesy Poblano Chili Relleno Casserole Recipe

Step 1: Prepare Your Baking Dish and Peppers

Start by preheating your oven to 350 degrees Fahrenheit (175 degrees Celsius). Generously grease an 8x8-inch baking dish with cooking spray to ensure none of the delicious cheesy layers stick. Then, take one can of the drained whole poblano peppers and layer them evenly on the bottom of your baking dish—this forms the flavorful foundation of your casserole.

Step 2: Layer the Cheese and Peppers

Sprinkle half of the shredded Monterey Jack and Cheddar cheeses evenly over the first layer of poblano peppers. Once that’s cozy, add the remaining canned poblano peppers on top, creating a layered effect that promises gooey, melty cheese in every bite.

Step 3: Mix the Creamy Egg Mixture

In a medium bowl, whisk together the eggs, evaporated milk, and flour until the mixture is smooth. The flour helps thicken the custard-like base that sets this casserole apart. If the mixture feels too thick, stir in up to half a cup of milk until it pours nicely but still holds its shape on the casserole.

Step 4: Add the Egg Mixture and Bake

Pour the creamy egg mixture evenly over the layered peppers and cheese in the baking dish. Slide the casserole into your preheated oven and bake for 25 minutes. This step allows the egg custard to set and the flavors to meld beautifully.

Step 5: Top with Sauce and Finish Baking

After 25 minutes, remove the casserole briefly and pour the enchilada or tomato sauce evenly over the top. Return the dish to the oven and bake for an additional 15 minutes—this adds a tangy, slightly spicy punch that complements the richness perfectly.

Step 6: Melt the Final Cheese Layer Under the Broiler

Turn on your oven’s broiler. Sprinkle the remaining Monterey Jack and Cheddar cheese over the casserole’s surface, then place it under the broiler for 2 to 3 minutes. Watch closely as the cheese melts into a bubbly, golden crust that’s impossible to resist. Once done, your Cheesy Poblano Chili Relleno Casserole Recipe is ready to serve hot and fresh!

How to Serve Cheesy Poblano Chili Relleno Casserole Recipe

A square white baking dish filled with a creamy layer topped with shredded white and orange cheese. Scattered on top are several whole green peppers, arranged evenly across the cheese layer. The dish sits on a white marbled surface showing light gray veins. The textures of the cheese and peppers are fresh and slightly shiny. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Fresh garnishes can elevate the presentation and flavor of this casserole. Try scattering fresh cilantro leaves, a dollop of cool sour cream, or thinly sliced green onions to add bursts of brightness and contrast to the richness of the cheese and peppers.

Side Dishes

This casserole pairs beautifully with simple Mexican-inspired sides. Consider serving it alongside Mexican rice, refried beans, or a crisp green salad dressed lightly with lime vinaigrette. These options complement the casserole’s richness while keeping the meal balanced.

Creative Ways to Present

If you want to impress guests, serve this casserole in individual ramekins or mini cast-iron skillets for personalized portions. You can also create a layered dip version by serving scoops with tortilla chips, turning it into a casual, shareable appetizer. The versatility of the Cheesy Poblano Chili Relleno Casserole Recipe makes it perfect for any occasion.

Make Ahead and Storage

Storing Leftovers

Allow the casserole to cool completely before transferring leftovers to an airtight container. Stored in the refrigerator, it will keep well for 3 to 4 days, making it perfect for quick lunches or a ready-made dinner when you’re short on time.

Freezing

You can freeze baked casserole portions wrapped tightly in plastic wrap and foil, or in freezer-safe containers, for up to 2 months. To freeze before baking, prepare through Step 4, cover tightly, and freeze; just add baking time when ready to cook.

Reheating

Reheat leftovers in a 350-degree Fahrenheit oven for about 15 to 20 minutes until warmed through and the cheese bubbles again. You can also microwave individual portions, but reheating in the oven helps maintain the casserole’s texture and flavor.

FAQs

Can I use fresh poblano peppers instead of canned?

Absolutely! Roasting fresh poblano peppers until charred, peeling off the skin, and drying them well is a fantastic alternative. It adds a smoky depth that enhances the casserole even more.

Is this dish very spicy?

The casserole uses mild poblano peppers, so it has a gentle, smoky heat rather than a fiery kick, making it approachable for most taste buds.

Can I make this vegetarian?

This recipe is already vegetarian-friendly since it contains no meat, just cheese, eggs, and peppers. For a vegan version, you’d need to substitute dairy and eggs with plant-based alternatives.

What cheese works best in this casserole?

The combination of Monterey Jack and Cheddar cheeses offers a perfect balance of meltiness and sharp flavor, but feel free to experiment with other melting cheeses like mozzarella or pepper Jack for added spice.

How can I make this casserole ahead of time?

Prepare the casserole fully up to Step 4, cover it tightly, and refrigerate overnight. When ready, bake it fresh, adding extra time as needed, then proceed with sauce and broiling the cheese at the end.

Final Thoughts

The Cheesy Poblano Chili Relleno Casserole Recipe is truly a loved-and-shared favorite that delivers authentic flavors with minimal fuss. Whether you’re cooking for family, feeding a crowd, or simply craving a cozy, cheesy Mexican-inspired meal, this casserole will not disappoint. Give it a try soon—you might just find your new weeknight hero!

Cheesy Poblano Chili Relleno Casserole Recipe

Ingredients You'll Need

How to Make Cheesy Poblano Chili Relleno Casserole Recipe