Keto Green Chile Chicken Casserole

This green chile chicken casserole is a total winner for anyone who loves smoky roasted green chiles mixed with creamy, cheesy chicken. It’s a super easy, family-friendly low-carb meal that’s packed with flavor and comes together fast using cooked shredded chicken and simple cheeses from your pantry. Whether it’s Hatch chile season or just a night you want a cozy, protein-packed dinner, this casserole has you covered.

Picture pulling a warm, bubbling casserole out of the oven that fills the house with the inviting aroma of smoky roasted green chiles and gooey melted cheese. This green chile chicken casserole offers that comforting, mild heat from the roast chiles blended into a smooth, protein-rich filling — all while keeping the carbs low enough for keto or low-carb eaters.

It’s a quick throw-together recipe using shredded cooked chicken, cream cheese, sour cream, eggs, and a tasty mix of Monterey Jack and Cheddar cheeses. Bake it for 25 to 30 minutes until the edges are bubbling and the center is set. Plus, it’s easy to customize, make ahead, or freeze, making it an ideal pick for Hatch chile season or any night you want a hassle-free, family-friendly, protein-forward casserole.

Why You’ll Love It

• Low carb and keto-friendly — this casserole is loaded with protein and low in carbs, which makes it perfect for ketogenic and low-carb meal plans.
• Fast and easy — uses shredded cooked chicken and simple pantry staples so you can get it on the table quickly (and if you need another speedy option, try Keto Sheet-Pan Sausage and Peppers).
• Family-friendly flavor — the smoky green chiles add depth without overpowering heat, so everyone will enjoy it.
• Make-ahead and versatile — you can prep it in advance, freeze it for later, or switch up the cheeses and add-ins based on what you have. For more make-ahead variety, try the Zucchini Casserole with Ground Beef.

What You’ll Need

• 3 cups shredded cooked chicken
• 1 cup chopped roasted green chiles, drained
• 4 ounces cream cheese, softened
• 1/2 cup sour cream
• 2 large eggs
• 1/2 teaspoon ground cumin
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1 1/2 cups shredded Monterey Jack cheese
• 1 cup shredded sharp Cheddar cheese
• 2 tablespoons sliced green onions, for topping

How to Make It

1. Preheat oven to 375°F and grease an 8×11-inch (about 2‑quart) baking dish.
2. Bring the cream cheese to room temperature so it softens and blends easily.
3. Shred cooked chicken finely.
4. Drain chopped roasted green chiles well to remove excess moisture.
5. In a large bowl, beat the softened cream cheese and sour cream until smooth and creamy.
6. Add the eggs, ground cumin, garlic powder, onion powder, salt, and black pepper; beat until combined.
7. Gently fold in the shredded chicken, drained roasted green chiles, 1 cup Monterey Jack, and 1/2 cup Cheddar.
8. Spread the mixture evenly into the prepared baking dish.
9. Sprinkle the remaining 1/2 cup Monterey Jack and 1/2 cup Cheddar evenly over the top.

10. Bake for 25 to 30 minutes at 375°F, until the edges are bubbling and the center is set with no jiggle.

    

11. Optional: broil 1 to 2 minutes to brown the cheese, watching closely so it doesn’t burn.
12. Let the casserole rest 5 minutes, then top with sliced green onions.

Tips for Perfect Results

• Make sure your cream cheese is warm or at room temperature — it blends so much easier with the sour cream and eggs that way.
• Shred your chicken finely. This helps the casserole hold together nicely. Rotisserie chicken is a total time saver here.
• Drain your roasted green chiles really well to avoid excess moisture that can make the casserole watery. For more moisture-control cues in low-carb bakes, see how we squeeze and drain ingredients in Keto Buffalo Chicken Cauliflower Casserole.
• Bake until the center is set but not dry. You want bubbling edges and a center that doesn’t jiggle when you gently shake the pan.
• If you love a nicely browned cheese top, pop the casserole under the broiler for a minute or two at the end — you can see the golden, bubbly finish in Keto Eggplant Parmesan Bake. But watch it closely so it doesn’t burn!

Flavor and Mix-In Ideas

• Want it spicier? Toss in some chopped pickled jalapeños or swap the mild green chiles for hot ones instead.
• Add veggies: stir in sautéed spinach, roasted poblano, or diced bell peppers (just reduce the chicken a bit to keep the texture balanced). Sautéed cabbage works too—prep it like these garlic butter cabbage noodles.
• Switch up the cheese: swap in pepper Jack for a little more heat, or use all Monterey Jack or all Cheddar — whatever you like best!
• Make individual servings by dividing the mixture into greased ramekins and baking for 18 to 22 minutes.
• Try shredded turkey instead of chicken for a tasty twist after the holidays.

Storage and Make-Ahead Tips

• Refrigerate leftovers by letting the casserole cool to room temperature, covering tightly, and storing it in the fridge for 3 to 4 days.
• If you want to freeze it, portion into airtight containers and keep it in the freezer for up to 3 months. Thaw overnight in the fridge before reheating. Stocking up on freezer-friendly keto mains? Try making a batch of Beef & Cauliflower Rice Keto Stuffed Peppers too.

• Reheat individual servings in the microwave for 1 to 2 minutes, or reheat a whole casserole in a 350°F oven covered with foil until warmed through (about 15 to 20 minutes if refrigerated). Remove the foil for the last few minutes to refresh that melty top. For a quick, crunchy side, serve with Easy Keto Zucchini Chips.

Common Questions Answered

• Is this casserole keto-friendly? Absolutely! With plenty of protein and healthy fats plus low-carb veggies, it fits perfectly into keto and low-carb diets. For a hearty side, serve it with our Keto Bread Recipe.
• Can I use canned green chiles? Yes, just be sure to drain them well before adding. Fresh roasted or frozen chopped chiles work great too if you want that fresh roast flavor.
• What kind of chicken is best? Cooked shredded chicken is key. Rotisserie chicken, poached breasts, or leftover roasted chicken all do the trick nicely.
• Can I prepare this ahead of time? Definitely! Assemble the casserole, cover it, and refrigerate for up to 24 hours before baking. If frozen, bake it thawed for the best texture.
• How do I know when it’s done baking? The center will be set with no jiggling, and the edges will bubble up. Baking 25 to 30 minutes at 375°F usually nails it perfectly.