Old-Fashioned Chile Relleno Bake

A cozy Southwestern casserole with seasoned beef, green chiles, cheese, and a fluffy baked egg topping 

One of our aunts lived in New Mexico, and she loved Southwestern cooking.

Whenever we visited, her kitchen always smelled wonderful. There was always something warm baking in the oven, filled with comforting spices and rich flavors that somehow felt both exciting and familiar.

This chile relleno bake was one of her specialties.

I still remember sitting down to that meal during one visit and being surprised by how flavorful it was without being too spicy. It had just the right balance of mild green chile flavor, seasoned beef, fluffy baked eggs, and melted cheese.

She later shared the recipe with my mother, and it became one of those treasured family dishes tucked safely into the recipe box.

It is hearty, comforting, and simple enough for any night of the week.

Ingredients:

1 lb. ground beef
1/2 cup chopped onion
salt and pepper to taste
1 tsp. garlic powder
1 tsp. onion powder 
2 (4-oz.) cans chopped green chiles, drained, but reserve liquid
1 1/2 cups grated sharp Cheddar cheese
1 1/2 cups milk
1/4 cup flour
4 eggs, beaten
Dash hot pepper sauce
1/2 tsp. salt

Directions:  

Preheat oven to 350°F.  Lightly grease a 10x6x2-inch baking dish (or similar 2-quart casserole dish).

In a large cast iron skillet over medium heat, cook the ground beef and chopped onion. Cook until beef is browned and the onions are tender.  Drain excess grease if needed.

After browning the beef and onions, stir in the liquid from the green chiles and cook for 3 to 5 minutes, stirring occasionally, until most of the liquid has cooked off and the flavor is absorbed into the meat mixture. 

Season with salt, pepper to taste.  Mix in the garlic powder and onion powder. Stir well.

Spread half the green chiles in the prepared baking dish. Sprinkle with half the cheddar cheese. Add beef mixture evenly.  Top with remaining green chiles and cheddar cheese. Set aside.

In a medium bowl, whisk together milk and flour.  Whisk until smooth.

Add beaten eggs, hot pepper sauce, and salt.  Mix well.

Pour egg mixture evenly over casserole.  Bake 50–60 minutes, or until lightly golden, the center is set and a knife inserted near the center comes out clean.

Cool 5–10 minutes before slicing and serving.

Tips for Best Success:

• Drain chiles thoroughly
• Shred cheese fresh for best melting
• Let casserole rest before slicing
• Use lean ground beef
• Whisk batter until completely smooth

Variations & Substitutions:

• Swap beef for sausage
• Use Monterey Jack cheese
• Add diced jalapeños for heat
• Use ground turkey
• Add chopped tomatoes on top

Serving Suggestions:

Serve with:

• Refried beans
• Spanish rice
• Fresh salsa
• Sour cream
• Tortilla chips
• Avocado slices

How to Store:

• Refrigerate covered up to 4 days
• Reheat at 325°F until warmed through
• Freezes well up to 2 months

Frequently Asked Questions:

Is this spicy?
No, it is mild unless extra hot sauce is added.

Can I make it ahead?
Yes, assemble and refrigerate overnight.

Can I use fresh green chiles?
Absolutely, roast and peel first.

Why let it rest?
Helps casserole set for cleaner slices.