Poblano Pepper Chile Rellenos Casserole with Cheese
A comforting casserole that transforms traditional chile rellenos into an easy baked dish. Roasted poblano peppers are layered with a blend of cheddar and Colby cheese, then topped with a savory custard mixture and pepper jack cheese. The result is a creamy, mildly spicy casserole perfect for brunch, dinner, or potluck gatherings. This version eliminates the frying step while maintaining the classic flavors of the beloved Mexican dish.
Ingredients
Instructions
- 1
Roast, peel, and deseed poblano peppers
- 2
Preheat oven to 350 degrees and spray an 8x12-inch glass baking dish with non-stick spray
- 3
Spread the peppers out in a single layer on the bottom of the baking dish
- 4
Sprinkle the cheddar and Colby cheese over the peppers
- 5
Combine the eggs, flour, milk, salt, and mustard in a bowl
- 6
Whisk until flour clumps are gone
- 7
Pour egg mixture over cheese
- 8
Top with pepper jack cheese
- 9
Bake uncovered for 30 minutes or until firm and set in the center
- 10
Remove and allow to cool for 5 minutes before serving
Tips
Char poblano peppers directly over a gas flame or under the broiler until skin is blackened for easier peeling
Let the casserole rest for 5 minutes after baking to allow the custard to set properly for cleaner slices
Use a glass baking dish as specified - metal pans may cause uneven cooking of the egg custard
Good to Know
Refrigerate covered for up to 3 days
Can be assembled up to 1 day ahead and refrigerated before baking
Serve warm as a main dish with salsa or hot sauce on the side
Common Mistakes
Do not skip the cooling period to avoid a runny center when slicing
Substitutions
Dairy-Free Swaps
Gluten-Free Swaps
General Alternatives
Use for less heat
FAQ
Can I use other types of peppers instead of poblanos?
Yes, Anaheim or Hatch chiles work well for milder heat, while jalapeños create a spicier version. Adjust quantity based on pepper size and heat preference.
What if my custard mixture seems lumpy after whisking?
A few small flour lumps are normal and acceptable as noted in the recipe. For smoother results, sift the flour before adding or strain the mixture.
How long will this casserole keep in the refrigerator?
Store covered in the refrigerator for up to 3 days. Reheat individual portions in the microwave or warm the whole dish in a low oven.