Baked Hatch Chile Relleno Casserole
If you love the bold, smoky flavor of traditional chile rellenos but want an easier, family-friendly version, this Baked Hatch Chile Relleno Casserole is the perfect recipe. Instead of stuffing and frying individual peppers, roasted Hatch green chiles are layered with plenty of melted cheese and covered with a light, fluffy egg batter before being baked until golden and bubbly. The result is a comforting casserole that’s packed with authentic Southwestern flavor while requiring much less hands-on preparation.
Fresh Hatch chiles are prized for their rich, smoky taste and mild to medium heat, making them the star of this dish. Combined with Monterey Jack and sharp Cheddar cheese, they create a creamy, cheesy filling that’s balanced by a savory egg custard. Whether you’re serving it for breakfast, brunch, lunch, or dinner, this casserole pairs wonderfully with fresh salsa, sour cream, avocado, and warm tortillas. It’s also an excellent make-ahead recipe for holidays, potlucks, or busy weeknight meals.
Prep Time: 20 minutes
Cook Time: 45 minutes
Rest Time: 10 minutes
Total Time: 1 hour 15 minutes
Servings: 8
Ingredients
Main Fillings
3 to 4 cups roasted Hatch green chiles, peeled, deseeded, and sliced open
or
2 cans (27 ounces total) whole green chiles, drained
2 cups shredded Monterey Jack cheese
2 cups shredded sharp Cheddar cheese
Egg & Batter Mixture
6 large eggs
2 cups whole milk
3 tablespoons all-purpose flour
1 teaspoon baking powder
Seasonings
2 teaspoons sea salt
½ teaspoon ground black pepper
1 teaspoon dried oregano
½ teaspoon garlic powder (optional)
½ teaspoon onion powder (optional)
For Garnish
Fresh cilantro, chopped
Diced tomatoes or pico de gallo
Sour cream (optional)
Sliced avocado (optional)
Instructions
Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with butter or cooking spray.
If using fresh Hatch chiles, roast them until the skins are blistered and charred. Place them in a covered bowl or plastic bag for about 10 minutes to steam, then peel away the skins. Remove the stems and seeds, leaving the chiles mostly intact.
Arrange half of the roasted chiles in a single layer across the bottom of the prepared baking dish.
Sprinkle half of the Monterey Jack cheese and half of the Cheddar cheese evenly over the peppers.
Add the remaining Hatch chiles in another layer and finish with the remaining shredded cheeses.
In a large mixing bowl, whisk together the eggs until smooth.
Add the milk, flour, baking powder, sea salt, black pepper, oregano, garlic powder, and onion powder. Continue whisking until the flour is fully incorporated and no lumps remain.
Slowly pour the egg mixture evenly over the layered chiles and cheese, making sure it reaches every corner of the baking dish.
Place the casserole in the preheated oven and bake for 40 to 45 minutes, or until the center is set and the top is lightly golden. A knife inserted into the center should come out clean.
Remove the casserole from the oven and let it rest for 10 minutes before slicing. This helps the casserole firm up and makes serving easier.
Garnish with chopped fresh cilantro, diced tomatoes or pico de gallo, and serve with sour cream and sliced avocado if desired.
Tips
Fresh Hatch chiles provide the most authentic flavor, but canned whole green chiles are a convenient alternative.
Roasting the peppers until well-charred makes peeling much easier and enhances their smoky taste.
Use freshly shredded cheese for smoother melting and better texture.
Allow the casserole to rest before slicing so it holds its shape.
Whisk the batter thoroughly to evenly distribute the flour and baking powder.
Taste your roasted chiles before assembling, as their heat level can vary significantly.
Grease the baking dish well to prevent sticking.
Avoid overbaking, as the egg mixture may become dry.
For a richer casserole, substitute part of the milk with half-and-half.
Leftovers taste even better the next day after the flavors have blended.
Variations
Add cooked ground beef or seasoned shredded chicken between the chile layers for a heartier meal.
Use Pepper Jack cheese for extra spice.
Mix roasted corn kernels into the filling for sweetness and texture.
Add sautéed onions and bell peppers for additional flavor.
Replace Cheddar with Colby Jack or Asadero cheese for a milder taste.
Include cooked chorizo for a bold Southwestern variation.
Make it vegetarian by adding black beans and roasted zucchini.
Use smoked paprika for additional smoky depth.
Top the finished casserole with sliced jalapeños for extra heat.
Serve with warm flour tortillas or Mexican rice for a complete meal.
Q&A
Can I use canned green chiles instead of fresh Hatch chiles?
Yes. Two 27-ounce cans of whole green chiles are an excellent substitute when fresh Hatch chiles aren’t available.
Can I prepare the casserole ahead of time?
Absolutely. Assemble the casserole, cover, and refrigerate it for up to 24 hours before baking.
Can I freeze leftovers?
Yes. Cool completely, wrap tightly, and freeze for up to 2 months. Thaw overnight before reheating.
How spicy are Hatch chiles?
Their heat varies from mild to fairly hot depending on the variety and growing season.
Can I make this gluten-free?
Yes. Replace the all-purpose flour with a gluten-free flour blend or cornstarch.
What should I serve with this casserole?
It pairs wonderfully with salsa, sour cream, avocado, Mexican rice, refried beans, or a crisp green salad.
How do I know when the casserole is done?
The center should be fully set, and a knife inserted into the middle should come out clean.
How should leftovers be stored?
Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in the oven or microwave before serving.
Nutrition
Per Serving (Approximate)
Calories: 345
Protein: 22g
Carbohydrates: 10g
Fat: 24g
Saturated Fat: 13g
Fiber: 2g
Sugar: 5g
Sodium: 710mg
Calcium: 40% Daily Value
Iron: 10% Daily Value
Conclusion
Baked Hatch Chile Relleno Casserole delivers all the delicious flavors of traditional chile rellenos in an easy-to-make baked dish that’s perfect for any meal of the day. Layers of smoky Hatch green chiles, gooey melted cheese, and a light, fluffy egg custard come together to create a comforting casserole that’s rich, satisfying, and full of Southwestern flavor. Whether you’re feeding a crowd, preparing meals ahead, or simply looking for a new family favorite, this casserole is sure to impress with its bold taste and effortless preparation.