Low-Carb Chicken Enchilada Casserole – Comforting, Cheesy, And Weeknight-Friendly

This casserole gives you all the cozy enchilada flavors without the carb-heavy tortillas. It’s rich, cheesy, and layered with tender chicken and a bold, smoky sauce. You can toss it together on a weeknight and still feel like you made something special.

The texture is hearty and satisfying, and the leftovers are even better. If you’re cutting carbs but still want comfort food, this hits the spot.

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Low-Carb Chicken Enchilada Casserole - Comforting, Cheesy, And Weeknight-Friendly

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Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Servings: 6 servings

Ingredients Method

Ingredients

  

• 3 cups cooked, shredded chicken (rotisserie works great)
• 1 1/2 cups red enchilada sauce (look for low-sugar, about 4–6g net carbs per serving)
• 1/2 cup sour cream
• 4 oz cream cheese, softened
• 1 cup shredded cheddar cheese
• 1 cup shredded Monterey Jack or pepper jack cheese
• 1 small onion, finely diced
• 1 small bell pepper, diced (optional, for extra texture)
• 1 (4 oz) can diced green chiles, drained
• 2 tablespoons olive oil or avocado oil
• 1 teaspoon chili powder
• 1 teaspoon ground cumin
• 1/2 teaspoon smoked paprika
• 1/2 teaspoon garlic powder
• Salt and black pepper to taste
• 2 tablespoons chopped fresh cilantro (optional)
• 1 small zucchini, thinly sliced into rounds or ribbons (low-carb “layer” in place of tortillas; optional)
• Optional toppings: sliced jalapeños, diced avocado, extra cilantro, a dollop of sour cream

Method

 

1. Preheat and prep. Heat the oven to 375°F (190°C). Grease a 9x13-inch baking dish.
2. Sauté the veggies. Warm oil in a skillet over medium heat. Add onion and bell pepper with a pinch of salt. Cook 4–5 minutes until softened.
3. Stir in aromatics. Add chili powder, cumin, smoked paprika, and garlic powder. Cook 30 seconds until fragrant. Remove from heat and stir in green chiles.
4. Mix the creamy base. In a bowl, whisk cream cheese, sour cream, and 1/2 cup enchilada sauce until smooth.
5. Combine the filling. In a large bowl, toss shredded chicken with the sautéed veggies and creamy sauce. Season with salt and pepper.
6. Layer the casserole. Spread 1/4 cup enchilada sauce on the bottom of the dish. If using zucchini, lay a thin, even layer to cover the bottom.
7. Add the chicken mixture. Spoon half the chicken mixture over the base. Drizzle with 1/3 cup enchilada sauce. Sprinkle with half the cheddar and half the Monterey Jack.
8. Repeat. Add another light layer of zucchini (if using), the remaining chicken mixture, more sauce, and the rest of the cheese.
9. Bake. Cover loosely with foil and bake 15 minutes. Remove foil and bake another 10–15 minutes, until bubbly and lightly golden.
10. Rest and garnish. Let it sit 10 minutes to set. Sprinkle with cilantro and add optional toppings as desired.

What Makes This Recipe So Good

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• Low-carb without feeling “diet.” You’ll skip tortillas and use low-carb swaps, but the flavors stay big and bold.
• Easy prep with store-bought shortcuts. Rotisserie chicken and jarred enchilada sauce keep things simple.
• Family-friendly. Mild enough for kids, but you can dial up the heat with jalapeños or hot sauce.
• Great for meal prep. Holds up well in the fridge, reheats beautifully, and freezes like a champ.
• Customizable. Add veggies, swap cheeses, or make it spicier—this casserole is flexible.

Ingredients

• 3 cups cooked, shredded chicken (rotisserie works great)
• 1 1/2 cups red enchilada sauce (look for low-sugar, about 4–6g net carbs per serving)
• 1/2 cup sour cream
• 4 oz cream cheese, softened
• 1 cup shredded cheddar cheese
• 1 cup shredded Monterey Jack or pepper jack cheese
• 1 small onion, finely diced
• 1 small bell pepper, diced (optional, for extra texture)
• 1 (4 oz) can diced green chiles, drained
• 2 tablespoons olive oil or avocado oil
• 1 teaspoon chili powder
• 1 teaspoon ground cumin
• 1/2 teaspoon smoked paprika
• 1/2 teaspoon garlic powder
• Salt and black pepper to taste
• 2 tablespoons chopped fresh cilantro (optional)
• 1 small zucchini, thinly sliced into rounds or ribbons (low-carb “layer” in place of tortillas; optional)
• Optional toppings: sliced jalapeños, diced avocado, extra cilantro, a dollop of sour cream

How to Make It

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1. Preheat and prep. Heat the oven to 375°F (190°C). Grease a 9×13-inch baking dish.
2. Sauté the veggies. Warm oil in a skillet over medium heat.

   Add onion and bell pepper with a pinch of salt. Cook 4–5 minutes until softened.

3. Stir in aromatics. Add chili powder, cumin, smoked paprika, and garlic powder. Cook 30 seconds until fragrant.

   Remove from heat and stir in green chiles.

4. Mix the creamy base. In a bowl, whisk cream cheese, sour cream, and 1/2 cup enchilada sauce until smooth.
5. Combine the filling. In a large bowl, toss shredded chicken with the sautéed veggies and creamy sauce. Season with salt and pepper.
6. Layer the casserole. Spread 1/4 cup enchilada sauce on the bottom of the dish. If using zucchini, lay a thin, even layer to cover the bottom.
7. Add the chicken mixture. Spoon half the chicken mixture over the base.

   Drizzle with 1/3 cup enchilada sauce. Sprinkle with half the cheddar and half the Monterey Jack.

8. Repeat. Add another light layer of zucchini (if using), the remaining chicken mixture, more sauce, and the rest of the cheese.
9. Bake. Cover loosely with foil and bake 15 minutes. Remove foil and bake another 10–15 minutes, until bubbly and lightly golden.
10. Rest and garnish. Let it sit 10 minutes to set.

    Sprinkle with cilantro and add optional toppings as desired.

How to Store

• Refrigerate: Cool completely, then cover tightly. Keeps 4–5 days.
• Reheat: Warm individual portions in the microwave 60–90 seconds, or reheat the whole dish at 325°F until hot.
• Freeze: Wrap portions well and freeze up to 2 months. Thaw overnight in the fridge, then reheat as above.

Benefits of This Recipe

• Low in carbs, big on flavor. Skipping tortillas and using a low-sugar sauce cuts carbs without sacrificing taste.
• Protein-packed. Chicken and cheese make it filling and satisfying.
• Flexible for different diets. Works for low-carb, keto-ish, and gluten-free lifestyles (check labels on sauce).
• Weeknight-friendly. Uses easy ingredients and straightforward steps.
• Make-ahead convenience. Assemble earlier in the day and bake when you’re ready to eat.

What Not to Do

• Don’t skip checking the sauce label. Some enchilada sauces are loaded with sugar; choose a low-sugar option.
• Don’t slice zucchini too thick. Thick slices release extra moisture and can make the casserole watery.
• Don’t overbake. Too long in the oven dries out the chicken and splits the sauce.
• Don’t forget to rest it. A 10-minute rest helps the layers set for cleaner slices.
• Don’t under-season. Taste the filling and adjust salt, pepper, and spices before baking.

Recipe Variations

• Green enchilada version: Use salsa verde or green enchilada sauce and Monterey Jack.

  Add a squeeze of lime.

• Cauliflower “tortilla” layer: Use thin sheets of roasted cauliflower or store-bought cauliflower tortillas (low-carb brand) in place of zucchini.
• Spicy chipotle: Blend a chipotle in adobo into your enchilada sauce for smoky heat.
• Veggie boost: Add sautéed mushrooms or spinach to the filling for extra volume and fiber.
• Dairy-light: Use reduced-fat cream cheese and part-skim cheese. The texture will be slightly less rich but still tasty.
• No-cream-cheese option: Swap the cream cheese for 1/2 cup Greek yogurt and an extra 1/4 cup shredded cheese. Stir gently to avoid curdling.
• Turkey or pork: Replace chicken with leftover turkey or shredded pork carnitas for a different twist.