This Egg Casserole with Green Chiles is a quick and easy egg casserole that is creamy, cheesy, and full of flavor!

Pair this creamy, slightly spicy Green Chile Egg Casserole with Strawberry Spinach Salad, Sour Cream Coffee Cake, and Bellinis for a memorable, yet simple brunch everyone will rave about!

Slice of green chile egg casserole on white plate.

I fell in love with this recipe for Egg Casserole with Green Chiles at my baby shower for my now 15-year-old daughter. My dear friends showered me with love, encouragement, gifts, and an amazing brunch that included this divine Green Chile Egg Casserole.

I immediately asked for the recipe and have been enjoying this egg casserole with green chiles for over a decade now! I would say it is high time to share this creamy egg casserole with you!

Reasons to Love Green Chile Egg Casserole

Amazing Flavor. This egg casserole is super creamy, light, and fluffy, thanks to the addition of cottage cheese. But the real star is the mild green chiles that add a subtle heat that contrasts nicely with the rich base.
Perfect for Entertaining. This egg casserole can be served warm or at temperature and can be made in advance. Making this brunch recipe perfect for hosting guests.
Unique Brunch Recipe. Just like more traditional recipes like Hash Brown Breakfast Casserole and Quiche Lorraine, this recipe is always loved by my guests. It just also happens to be unique and unexpected!

Notes on Ingredients Needed

Ingredients Labeled on counter for egg casserole with green chiles.

Cottage Cheese: I know cottage cheese sounds like an odd addition to an egg casserole. But the cottage cheese melts right into the eggs, adding tanginess and creaminess. Not to mention cottage cheese packs in protein! Be sure to use full-fat cottage cheese for the best results.
Green Chiles: This recipe uses canned diced green chiles. Be sure to purchase mild, not hot green chiles, or your casserole will be overly spicy.
Cheese: Adding shredded cheese will be sure to impart every bite with cheesy goodness. I recommend Colby Jack cheese, as it is a nice flavor companion to the green chiles. However, you can use cheddar, Monterey Jack, or even Swiss cheese.
Onion: Use a yellow or white onion, not a sweet or red onion for best results.
Flour: The flour is used to help the egg casserole set up and rise slightly.
Milk: Use any fat percentage of milk or cream you like. Half and half or cream will make this egg casserole that much more luscious.
Seasoned Salt: Instead of using regular kosher salt, I love relying on my homemade seasoned salt, made with the addition of things like onion powder and garlic powder, to pack in the additional flavor.

Recipe Modifications

Gluten-Free Green Chile Egg Casserole: If you are gluten-free, use a 1:1 gluten-free flour in place of the all-purpose flour. The results will be fantastic.
No Seasoned Salt? In place of seasoned salt, use ¼ teaspoon garlic powder and ¾ teaspoon kosher salt.

How to Make Egg Casserole with Green Chiles

One of the many reasons I love this Green Chile Egg Casserole is that it is so easy to make. And while you will find detailed instructions in the recipe card, I have a few tips to help you achieve perfect results.

Step One: Saute Onions and Green Chiles. The most time-consuming part of the recipe, other than the baking, is sauteeing the onions and green chiles. But trust me, that added step sets this recipe apart from others in the best way. The onions and green chiles get buttery, rich, and tender.

Green Chiles and yellow onion sauteed in small saute pan.

Step Two: Whisk Milk with Dry Ingredients. In a small bowl, or blender, whisk together the milk, flour, and baking powder until completely smooth and incorporated. You want to be sure your flour and baking powder are both fully incorporated with the milk so that your egg casserole does not have lumps of flour or baking powder in the finished product.

Flour and milk in a mixing cup next to wire whisk.

Step Three: Combine Egg Casserole. In a large mixing bowl incorporate the eggs, cottage cheese, seasonings, cheese, green chile mixture and flour mixture together until combined.

Side by side bowl before and after mixing eggs with cottage cheese and cheese.

Step Four: Bake. Bake until the casserole is set and puffy.

Baked Green Chili Egg Casserole in Blue Casserole Dish.

Serving Suggestions

This Egg Casserole makes a perfect addition to any brunch menu and can be served warm or room temperature. If desired, serve with sour cream, chopped tomatoes, and cilantro. I love pairing it with a simple fruit salad and blueberry coffee cake, for a simple, flavorful brunch.

Egg Casserole with green chiles on white plate.

Make Ahead Directions

You have two options for preparing this Egg Casserole in advance.

Assemble up to Baking: Prep the casserole up to baking, cover it with plastic wrap, and refrigerate it for up to 24 hours. Remove the casserole from the refrigerator and let it sit at room temperature for 30 minutes. After 30 minutes, remove the plastic wrap and bake as directed.
Bake and Reheat: Prepare and bake the casserole as directed, let it cool completey. Cover and refrigerate for up to 48 hours. Before serving, remove the casserole from the refrigerator and let it sit at room temperature for 30 minutes. After 30 minutes, remove the plastic wrap, cover with foil, and bake at 300-degrees F for 20-25 minutes just to take the chill off.