Low Carb Chicken Taco Casserole
Craving cheesy taco-night flavor without the tortillas and extra carbs? This Low Carb Chicken Taco Casserole brings together tender shredded chicken, taco seasoning, creamy cheese, and colorful vegetables in one delicious, family-friendly bake.
It’s everything you love about chicken tacos in an easy casserole dish. The creamy filling is packed with savory Mexican-inspired flavor, while melted cheddar creates a golden, cheesy topping. Best of all, it’s simple to prepare with cooked chicken, making it perfect for busy weeknights, meal prep, or a comforting weekend dinner.
Serve it straight from the baking dish with your favorite low-carb toppings, and everyone can customize their portion. Whether you’re following a keto lifestyle or simply looking for a satisfying lower-carb dinner, this casserole is one to keep in your recipe rotation.
❤️ Why You’ll Love This Recipe
Low carb and satisfying: Enjoy taco-inspired flavor without tortillas or rice.
High in protein: Chicken makes this casserole hearty and filling.
Creamy and cheesy: Cream cheese, sour cream, and cheddar create a rich filling.
Easy preparation: Use cooked or rotisserie chicken to save time.
Family-friendly: Familiar taco flavors everyone can enjoy.
Great for meal prep: Make it ahead and portion leftovers for easy lunches.
Customizable: Adjust the spice level and toppings to suit your preferences.
One baking dish: Simple assembly and easy cleanup.
📋 Recipe Information
Prep Time: 15 minutes
Cook Time: 25–30 minutes
Total Time: 40–45 minutes
Servings: 6
Course: Main Dish, Dinner
Cuisine: Mexican-inspired, American
Dietary Style: Low Carb, Keto-Friendly
🛒 Ingredients
For the Chicken Taco Filling
3 cups cooked shredded chicken breast
1 tablespoon olive oil
1 small bell pepper, diced
½ cup diced onion
1 can (4 ounces) diced green chiles, drained
2 tablespoons taco seasoning (check the label for added starches or sugars)
4 ounces cream cheese, softened
½ cup sour cream
½ cup salsa, preferably a low-sugar variety
1 cup shredded cheddar cheese
½ cup shredded Monterey Jack cheese
Optional Toppings
Sliced green onions
Fresh cilantro
Diced avocado
Sliced jalapeños
Extra sour cream
Fresh lime wedges
Ingredient tip: Choose a salsa and taco seasoning with minimal added sugar and starch to keep the carbohydrate count lower. For a spicier casserole, use hot salsa or add jalapeños.
🍳 Equipment Needed
9 × 13-inch baking dish
Large skillet
Mixing bowl
Cutting board
Sharp knife
Measuring cups and spoons
Spatula or wooden spoon
Cheese grater
👩🍳 How to Make Low Carb Chicken Taco Casserole
Step 1: Prepare the Oven and Baking Dish
Preheat the oven to 375°F (190°C).
Lightly grease a 9 × 13-inch baking dish with cooking spray or a little olive oil.
Step 2: Sauté the Vegetables
Heat the olive oil in a large skillet over medium heat.
Add the diced bell pepper and onion. Cook for approximately 4–5 minutes, stirring occasionally, until softened.
Stir in the drained diced green chiles and taco seasoning. Cook for another 30 seconds to bring out the seasoning’s flavor.
Step 3: Make the Creamy Taco Sauce
Reduce the heat to low.
Add the softened cream cheese and sour cream to the skillet. Stir until the cream cheese melts and the mixture becomes smooth.
Stir in the salsa until everything is evenly combined.
If the mixture seems too thick, add a tablespoon or two of water or chicken broth.
Step 4: Add the Chicken
Add the cooked shredded chicken to the skillet.
Stir gently until the chicken is completely coated in the creamy taco mixture.
Taste and adjust the seasoning if needed.
Step 5: Assemble the Casserole
Transfer the chicken mixture into the prepared baking dish.
Spread it evenly with a spatula.
Sprinkle the shredded cheddar and Monterey Jack cheese over the top.
Step 6: Bake Until Hot and Bubbly
Place the casserole in the preheated oven.
Bake uncovered for 20–25 minutes, or until the cheese is melted, the edges are bubbling, and the center is heated through.
If you want a more golden cheese topping, broil for 1–2 minutes at the end, watching carefully to prevent burning.
If using freshly cooked chicken, make sure it reaches an internal temperature of 165°F (74°C) before shredding and assembling. For previously cooked chicken, the assembled casserole should also be heated thoroughly.
Step 7: Rest Before Serving
Remove the casserole from the oven and let it rest for about 5–10 minutes.
This helps the creamy filling settle and makes serving easier.
Step 8: Add Toppings and Enjoy
Finish with sliced green onions, cilantro, avocado, jalapeños, or an extra dollop of sour cream.
Serve warm and enjoy!
💡 Tips for the Best Chicken Taco Casserole
Use Tender, Moist Chicken
Rotisserie chicken is a convenient shortcut. You can also use leftover baked or poached chicken. Remove the skin and bones before shredding.
Soften the Cream Cheese
Room-temperature cream cheese blends more easily and helps prevent lumps in the sauce.
Drain the Green Chiles
Excess liquid can make the filling watery. Drain canned green chiles before adding them.
Choose a Lower-Sugar Salsa
Some store-bought salsas contain added sugar. Check the nutrition label and choose one that fits your low-carb goals.
Shred Your Own Cheese
Freshly shredded cheese generally melts more smoothly than pre-shredded varieties.
Let the Casserole Rest
Allowing the casserole to rest for a few minutes helps it hold together when scooped.
Adjust the Heat
Use mild taco seasoning and salsa for a family-friendly version, or add hot sauce, jalapeños, or cayenne for extra spice.
🌶️ Delicious Variations
1. Creamy Ranch Chicken Taco Casserole
Add 1 teaspoon ranch seasoning to the creamy filling for a ranch-inspired flavor. Check the label for added carbohydrates.
2. Spicy Jalapeño Taco Casserole
Add diced jalapeños to the vegetable mixture and use hot salsa for a spicy version.
3. Bacon Cheddar Chicken Taco Casserole
Sprinkle ½ cup cooked, crumbled bacon over the cheese before baking for a smoky twist.
4. Chicken Fajita Taco Casserole
Use a combination of sliced red and green bell peppers, and add a little cumin and smoked paprika.
5. Extra Cheesy Taco Casserole
Add ½ cup shredded mozzarella or pepper jack cheese to the topping for an extra-cheesy finish.
6. Cauliflower Rice Taco Casserole
Stir 1½ cups cooked, well-drained cauliflower rice into the chicken mixture before baking. This adds volume while keeping the casserole low in carbohydrates.
7. Rotisserie Chicken Shortcut
Use store-bought rotisserie chicken to make preparation even faster. Check the label for added ingredients and sodium if you’re tracking them.
🍽️ What to Serve With It
This casserole is hearty enough to serve on its own, but a few low-carb sides can make it a complete dinner.
Low-Carb Side Dishes
Cilantro lime cauliflower rice
Roasted zucchini
Sautéed bell peppers
Avocado salad
Steamed broccoli
Lettuce and cucumber salad
Grilled asparagus
Favorite Taco Toppings
Sour cream
Diced avocado
Fresh cilantro
Sliced jalapeños
Lime wedges
Extra shredded cheese
Low-carb salsa
For a fun family dinner, set out the toppings in small bowls and let everyone build their own serving.
🥡 Storage and Reheating
Refrigerator
Allow leftovers to cool slightly and transfer them to an airtight container within 2 hours of cooking.
Refrigerate for 3–4 days.
Freezer
This casserole can be frozen, although the sour cream and cream cheese filling may change texture slightly after thawing.
For best results, freeze individual portions in airtight freezer-safe containers for up to 2 months.
Thaw overnight in the refrigerator before reheating.
Reheating
Oven: Place the desired portion in an oven-safe dish, cover loosely with foil, and warm at 325°F (163°C) until heated through.
Microwave: Heat individual portions in 30-second intervals, stirring or checking between intervals when possible.
Reheat leftovers to 165°F (74°C). Avoid overheating, as this can dry out the chicken and cause the sauce to separate.
📊 Approximate Nutrition Information
Per serving, based on 6 servings:
Calories: 390
Protein: 38 g
Fat: 23 g
Total Carbohydrates: 7 g
Fiber: 1 g
Net Carbohydrates: 6 g
Nutrition values are estimates and will vary depending on the chicken, cheese, cream cheese, salsa, and taco seasoning brands used. Optional toppings are not included.
❓ Frequently Asked Questions
Is chicken taco casserole keto-friendly?
Yes. This version uses chicken, cheese, cream cheese, sour cream, and low-sugar salsa without tortillas, rice, or flour. Check the labels on your salsa and taco seasoning to keep the carbohydrate count within your goals.
Can I use rotisserie chicken?
Absolutely! Rotisserie chicken makes this recipe especially convenient. Remove the skin and bones, shred the meat, and measure out 3 cups.
Can I make this casserole ahead of time?
Yes. Assemble the casserole, cover it, and refrigerate it for up to 24 hours before baking. Keep the prepared casserole refrigerated rather than leaving it at room temperature. If baking directly from the refrigerator, allow extra time for the center to heat through.
Can I use chicken thighs instead of chicken breast?
Yes. Boneless, skinless chicken thighs work well and provide a slightly richer flavor. Cook them thoroughly to 165°F (74°C) before shredding.
How can I make the casserole spicier?
Use hot salsa, add diced jalapeños, or stir in a little cayenne pepper or hot sauce.
Can I make this casserole without cream cheese?
You can replace the cream cheese with additional sour cream or a little plain Greek yogurt. The filling will be less rich and may have a slightly different texture.
Why is my casserole watery?
Excess liquid from salsa, green chiles, or vegetables can make the filling watery. Drain the green chiles, use a thicker salsa, and avoid adding too much broth or water.
Can I add cauliflower rice?
Yes. Add cooked cauliflower rice that has been drained well. This is a great way to increase the volume of the casserole without using traditional rice.
Can I freeze chicken taco casserole?
Yes. Freeze cooled portions in airtight containers. The creamy sauce may separate slightly after thawing, but gentle reheating and stirring can help bring it back together.
💚 Final Thoughts
This Low Carb Chicken Taco Casserole is an easy way to enjoy all the delicious flavors of taco night in a creamy, cheesy, low-carb meal. Tender shredded chicken, taco seasoning, green chiles, salsa, and melted cheese come together in one comforting baking dish.
It’s simple enough for busy weeknights, delicious enough for family gatherings, and easy to customize with your favorite toppings. Serve it with cauliflower rice or a fresh salad for a satisfying dinner that fits beautifully into a lower-carb lifestyle.