Chile Rellenos Casserole Recipe
Chile Rellenos Casserole is an easy baked interpretation of classic chile rellenos, combining whole green chiles stuffed with Monterey Jack cheese, a light egg-and-flour batter, and a generous layer of melted cheddar. Instead of individually battering and frying each chile, everything is assembled in one baking dish, making the recipe considerably simpler while preserving the familiar combination of roasted chile, egg, and melted cheese.
The whole green chiles provide mild earthy flavor and a tender texture, while Monterey Jack melts inside each chile to create a creamy center. The egg batter puffs gently during baking, surrounding the stuffed chiles with a soft, soufflé-like layer, and cheddar on top creates a rich golden finish.
The result is warm, cheesy, mildly spicy, and satisfying without the mess of deep-frying. It works equally well for breakfast, brunch, lunch, or dinner and pairs beautifully with salsa, beans, tortillas, or a crisp salad.

Why People Will Love Chile Rellenos Casserole Recipe Recipe
It captures many of the flavors of traditional chile rellenos without frying.
Whole green chiles give each serving a distinct roasted chile flavor.
Monterey Jack creates a creamy, melty center.
Cheddar adds a sharper cheese flavor on top.
Eggs give the casserole a light, puffed texture.
The flour helps the egg mixture hold together and slice cleanly.
Baking powder adds additional lift to the batter.
The recipe uses only a handful of ingredients.
Canned whole chiles make preparation fast and convenient.
Everything is assembled in one baking dish.
There is no need to bread or deep-fry individual peppers.
It works well for breakfast or brunch.
It is also hearty enough for dinner.
The casserole can be served plain or with many different toppings.
The spice level is mild enough for many families.
It can be paired with salsa for additional heat.
Leftovers reheat well.
The casserole is easy to cut into individual portions.
It makes a practical dish for potlucks or family gatherings.
Key Ingredients
Whole Green Chiles:
These are the defining ingredient of the casserole. They provide a mild roasted-pepper flavor and act as natural pockets for the Monterey Jack cheese.
Monterey Jack Cheese:
Monterey Jack melts smoothly and has a mild flavor that complements the green chiles without overpowering them.
Eggs:
Eggs provide structure and create the light, tender custard-like texture around the stuffed chiles.
Milk:
Milk loosens the egg mixture and helps create a softer, more delicate texture.
All-Purpose Flour:
Flour gives the casserole enough structure to hold together when sliced while also creating a texture reminiscent of a baked batter.
Baking Powder:
Baking powder helps the egg mixture puff slightly as it bakes.
Cheddar Cheese:
Cheddar provides a stronger, more savory flavor on the surface and creates an appealing melted, bubbly topping.
Expert Tips
Drain the canned green chiles very thoroughly before assembling the casserole.
Pat the chiles gently with paper towels if they are especially wet.
Handle whole chiles carefully because canned chiles can tear easily.
Cut the Monterey Jack into narrow strips that fit comfortably inside the peppers.
Do not overstuff the chiles or they may split.
Arrange the stuffed chiles evenly so every portion contains some chile and cheese.
Bring the eggs and milk closer to room temperature if possible for more even mixing.
Whisk the flour in gradually to minimize lumps.
Sifting the flour before adding it can make the batter even smoother.
Make sure the baking powder is fresh so the egg mixture rises properly.
Pour the batter slowly so it flows around the chiles rather than moving them out of place.
Spread the cheddar evenly across the top.
Bake until the center is set rather than relying only on the 30-minute timer.
If the top browns too quickly, cover loosely with foil.
Let the casserole rest before slicing.
Serve while warm for the best melted-cheese texture.
Chile Rellenos Casserole Recipe
Ingredients
2 (10-ounce) cans whole green chiles, well drained
6 ounces Monterey Jack cheese, cut into strips
8 large eggs
⅔ cup milk
1 cup all-purpose flour
1 teaspoon baking powder
1½ cups shredded cheddar cheese
Instructions
Preheat the Oven
Preheat the oven to 350°F / 175°C.
Lightly coat a 9 x 13-inch baking dish with nonstick cooking spray and set aside.
Prepare the Green Chiles
Drain the canned whole green chiles thoroughly.
Carefully open each chile without tearing it apart.
Place a strip of Monterey Jack cheese inside each chile, then gently close the chile around the cheese.
Arrange the stuffed chiles evenly in the prepared baking dish.
Prepare the Egg Batter
In a large mixing bowl, combine the eggs, milk, all-purpose flour, and baking powder.
Whisk thoroughly until the mixture is smooth and well blended, with as few flour lumps as possible.
Assemble the Casserole
Pour the egg mixture evenly over the stuffed green chiles.
Make sure the liquid flows around and between the chiles.
Sprinkle the shredded cheddar cheese evenly over the top.
Bake
Place the casserole in the preheated oven.
Bake uncovered for about 30 minutes, or until the egg mixture is puffed and set in the center and the cheese on top is melted and bubbling.
If needed, bake for a few additional minutes until the center no longer appears wet.
Rest and Serve
Remove the casserole from the oven and let it rest for about 5–10 minutes.
This helps the egg mixture set more firmly and makes the casserole easier to slice.
Cut into squares and serve warm while the cheese is still soft and melted.
Important Notes When Making Chile Rellenos Casserole Recipe
Canned green chiles may contain considerable sodium.
Monterey Jack and cheddar also add substantial sodium.
Additional salt is usually unnecessary unless using very low-sodium ingredients.
Green chile heat can vary by brand and variety.
Whole canned green chiles are usually fairly mild.
For a hotter casserole, use hotter green chiles or add roasted Hatch chile.
The batter should be smooth but does not need to be completely free of tiny flour lumps.
The casserole will puff while baking and settle somewhat as it cools.
A slightly golden surface is normal and desirable.
The center should not appear wet when the casserole is done.
Letting it rest for 5–10 minutes improves slicing.
Reduced-fat cheese can be used, but the texture may be less creamy.
Freshly shredded cheddar melts more smoothly than many packaged pre-shredded cheeses.
Refrigerate leftovers promptly.
Reheat gently to avoid making the eggs rubbery.

How to Enjoy Chile Rellenos Casserole Recipe After Cooking
Allow the casserole to rest for about 5–10 minutes after removing it from the oven. This gives the egg mixture time to settle and makes the slices hold together better.
Cut the casserole into squares using a sharp knife or thin spatula.
Serve it warm so the Monterey Jack inside the chiles remains soft and melted.
For breakfast or brunch, pair it with fried potatoes, hash browns, fresh fruit, or warm tortillas.
For lunch or dinner, serve with pinto beans, black beans, Mexican rice, or a crisp cabbage salad.
Salsa roja or salsa verde is especially good spooned over the top because the acidity cuts through the richness of the cheese and eggs.
For additional freshness, add chopped cilantro, diced tomatoes, sliced green onions, or avocado.
Sour cream can be served on the side for a cooler, creamier contrast.
Warm flour or corn tortillas make it easy to turn each serving into a casual taco-style meal.
For leftovers, reheat individual portions in a moderate oven or microwave just until warmed through.
Nutrition Information
Approximate nutrition per serving, based on about 8 servings:
Calories: 320 kcal | Total Fat: 21 g | Saturated Fat: 11 g | Monounsaturated Fat: 7 g | Polyunsaturated Fat: 1.5 g | Cholesterol: 205 mg | Sodium: 650–850 mg depending on the canned chiles and cheeses | Total Carbohydrates: 15 g | Dietary Fiber: 1.5 g | Sugars: 3 g | Protein: 19 g
Additional estimate:
Potassium: 250–350 mg | Calcium: 350–450 mg | Iron: 2–2.5 mg | Magnesium: 25–35 mg | Vitamin A: 1,000–1,400 IU | Vitamin C: 15–25 mg | Vitamin B12: 1.2–1.6 mcg
Frequently Asked Questions:
What does Chile Rellenos Casserole taste like?
It is cheesy, savory, mildly spicy, and slightly eggy, with roasted green chile flavor and a soft, puffed texture.
Is this the same as traditional chile rellenos?
Not exactly. Traditional chile rellenos are commonly stuffed and battered individually, often then fried. This casserole uses similar ingredients but bakes them together for easier preparation.
Is the casserole spicy?
Usually only mildly spicy when made with canned whole green chiles. Hotter Hatch chiles can be substituted if you prefer more heat.
What should I serve with it?
Salsa, beans, Mexican rice, tortillas, avocado, sour cream, or a fresh salad all pair well.
Can this be served for breakfast?
Yes. Because it contains eggs, cheese, and chiles, it works especially well for breakfast or brunch.
Why should the green chiles be drained thoroughly?
Excess liquid can make the egg batter watery and prevent the casserole from setting properly.
Why is my egg mixture lumpy?
The flour may have been added too quickly. Whisk it in gradually, or sift it first, for a smoother batter.
How do I know when the casserole is fully baked?
The center should look set rather than liquid, the eggs should be puffed, and the cheese on top should be completely melted and bubbling.
Can I prepare the casserole ahead of time?
Yes, you can stuff the chiles and prepare the ingredients ahead, but for the best rise and texture, whisk and add the egg batter shortly before baking.
Can I use fresh roasted chiles instead of canned?
Absolutely. Roast, steam, peel, and seed fresh Anaheim, poblano, or Hatch chiles, then pat them dry before stuffing and assembling the casserole.