If you’re searching for a hearty, flavor-packed dinner that won’t derail your healthy eating goals, this Low Carb Taco Casserole is exactly what you need. Moreover, it brings together all the bold, zesty flavors you love about taco night while keeping the carbs in check. Whether you’re following a keto lifestyle, watching your carbohydrate intake, or simply craving comfort food with a healthier twist, this casserole delivers on every front. Furthermore, it’s incredibly easy to prepare, making it perfect for busy weeknights when you want something satisfying without spending hours in the kitchen.

Table of Contents
Why Choose a Keto-Friendly Taco Casserole
Traditional taco casseroles often rely on tortilla chips, rice, or beans as their base, which can send your carb count through the roof. In contrast, this low carb taco casserole eliminates those high-carb ingredients while maintaining all the flavors you crave. Consequently, you can enjoy a generous portion without worrying about blood sugar spikes or breaking ketosis. The recipe focuses on protein-rich ground beef and healthy fats from cheese and sour cream, creating a perfectly balanced meal that keeps you satisfied for hours.
Ingredients
| Ingredient | Quantity |
|---|---|
| Ground beef (80/20) | 2 pounds |
| Taco seasoning | 3 tablespoons |
| Cream cheese (softened) | 8 ounces |
| Sour cream | 1 cup |
| Shredded cheddar cheese | 2 cups |
| Shredded Monterey Jack cheese | 1 cup |
| Diced tomatoes with green chiles | 1 can (10 ounces) |
| Bell pepper (diced) | 1 medium |
| Onion (diced) | 1 medium |
| Jalapeño (optional, diced) | 1 pepper |
| Garlic (minced) | 3 cloves |
| Olive oil | 2 tablespoons |
| Salt | 1 teaspoon |
| Black pepper | 1/2 teaspoon |
| Fresh cilantro (chopped) | 1/4 cup |
Preparing Your Ingredients for Success
Selecting the Best Ground Beef
The foundation of any great taco casserole starts with quality ground beef. For this recipe, an 80/20 blend works exceptionally well because it provides enough fat to keep the meat juicy and flavorful without being overly greasy. Nevertheless, if you prefer a leaner option, 85/15 or even 90/10 ground beef will work just fine. You might need to add a touch more olive oil when browning leaner meat to prevent sticking.
Always look for bright red beef with minimal brown discoloration, which indicates freshness. Additionally, grass-fed beef offers a richer flavor profile and contains more omega-3 fatty acids compared to conventional options. Whatever you choose, make sure to break it up well while cooking to ensure even browning and optimal texture in your finished casserole.
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Low Carb Taco Casserole
- Total Time: 45 minutes
- Yield: 8 servings 1x
Description
A hearty, flavor-packed taco casserole with seasoned ground beef, melted cheese, and vibrant vegetables – all while keeping carbs low for a keto-friendly dinner the whole family will love.
Ingredients
- 2 pounds ground beef (80/20)
- 3 tablespoons taco seasoning
- 8 ounces cream cheese, softened
- 1 cup sour cream
- 2 cups shredded cheddar cheese
- 1 cup shredded Monterey Jack cheese
- 1 can (10 ounces) diced tomatoes with green chiles, drained
- 1 medium bell pepper, diced
- 1 medium onion, diced
- 1 jalapeño pepper, diced (optional)
- 3 cloves garlic, minced
- 2 tablespoons olive oil
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/4 cup fresh cilantro, chopped
Instructions
- 1. Preheat oven to 350°F and grease a 9×13-inch baking dish.
- 2. Heat olive oil in a large skillet over medium-high heat. Add diced onions and bell peppers, sautéing for 5 minutes until softened.
- 3. Add ground beef to the skillet, breaking it apart as it cooks until no longer pink. Drain excess fat if needed.
- 4. Stir in taco seasoning, minced garlic, salt, and black pepper. Cook for 2-3 minutes until spices are fragrant.
- 5. Remove skillet from heat and add softened cream cheese and sour cream, stirring until well combined and creamy.
- 6. Fold in drained diced tomatoes with green chiles and jalapeño if using.
- 7. Spread the meat mixture evenly in the prepared baking dish.
- 8. Sprinkle half of the cheddar and Monterey Jack cheese over the meat layer.
- 9. Bake for 15 minutes, then add remaining cheese on top.
- 10. Continue baking for 10-15 minutes until cheese is bubbly and lightly browned.
- 11. Optional: Switch to broil for the last 2 minutes for a crispy top, watching carefully.
- 12. Remove from oven and let rest for 5 minutes. Garnish with fresh cilantro before serving.
Notes
Store leftovers in an airtight container in the refrigerator for up to 5 days. Reheat individual portions in the microwave for 2-3 minutes or larger portions in a 325°F oven for 20 minutes. Can be frozen for up to 3 months either before or after baking. Top with sour cream, avocado, sliced jalapeños, or crushed pork rinds for extra flavor and crunch.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Main Course
- Method: Baking
- Cuisine: Mexican-American
Nutrition
- Serving Size: 1 serving (1/8 of casserole)
- Calories: 425
- Sugar: 4g
- Sodium: 780mg
- Fat: 31g
- Carbohydrates: 9g
- Fiber: 2g
- Protein: 32g
Prepping Vegetables for Maximum Flavor
Fresh vegetables play a crucial role in adding texture, color, and nutrients to your low carb taco casserole. Start by dicing your onion and bell pepper into uniform pieces, roughly a quarter-inch in size. This ensures they cook evenly and distribute throughout the dish. Similarly, mince your garlic finely so it releases its aromatic oils and blends seamlessly into the meat mixture.
If you’re including jalapeño for extra heat, remember to remove the seeds and membranes unless you really love spicy food. The capsaicin in these parts provides most of the pepper’s heat. On the other hand, leaving some seeds in can give your casserole that authentic kick that taco lovers appreciate.
Storage and Meal Prep Tips
Refrigerating and Reheating Leftovers
One of the best things about this Low Carb Taco Casserole is how well it keeps throughout the week. After cooling completely, transfer leftovers to an airtight container and refrigerate for up to five days. The flavors actually deepen and meld together over time, making day-two servings sometimes even better than the original.
To reheat individual portions, microwave on medium power for two to three minutes, or until heated through. For larger portions, cover with foil and warm in a 325°F oven for about twenty minutes. Add a splash of water or broth if the casserole seems dry after refrigeration.
Freezing for Future Convenience
This recipe freezes exceptionally well, making it perfect for meal prep enthusiasts. You can either freeze the entire casserole before baking or freeze individual portions after cooking. For unbaked casseroles, assemble everything in a freezer-safe dish, cover tightly with plastic wrap and foil, and freeze for up to three months.
When ready to cook, thaw in the refrigerator overnight and bake as directed, adding an extra ten minutes to the cooking time. For pre-cooked portions, wrap individual servings in plastic wrap, then place in a freezer bag. These single servings are perfect for quick lunches or those nights when you need dinner in a hurry.
Serving Suggestions and Toppings
Classic Low Carb Toppings
Once your casserole emerges from the oven, golden and bubbling, it’s time to add the finishing touches. Fresh cilantro brings a bright, herbaceous note that cuts through the richness of the cheese. A dollop of sour cream adds extra creaminess and helps cool down any spiciness from the jalapeños.
Sliced avocado or guacamole makes an excellent addition, providing healthy fats and a buttery texture. Additionally, pickled jalapeños, diced tomatoes, or a squeeze of fresh lime juice can brighten up the flavors. For those who enjoy some crunch, crushed pork rinds make a fantastic low-carb alternative to tortilla chips.
Creating a Complete Meal
This casserole is substantial enough to serve as a complete meal on its own. However, pairing it with simple sides can round out your dinner nicely. A crisp green salad with a tangy vinaigrette provides a refreshing contrast to the rich, cheesy casserole. Alternatively, cauliflower rice seasoned with lime and cilantro creates a perfect low-carb accompaniment.
For gatherings or potlucks, this dish travels well and stays warm for quite some time. Cut it into squares and serve it directly from the baking dish for easy, fuss-free entertaining that still impresses your guests.

FAQ About Low Carb Taco Casserole
How many net carbs are in a serving of Low Carb Taco Casserole?
Each serving of this Low Carb Taco Casserole contains approximately 6-8 net carbs, depending on the specific ingredients you use. The majority of carbs come from the vegetables and dairy products. To keep carbs at the lower end, use full-fat dairy products and limit higher-carb vegetables. This makes it an excellent choice for those following keto or low-carb diets, as it fits comfortably within most daily carb allowances while providing substantial protein and healthy fats.
Can I make this casserole dairy-free?
Yes, you can adapt this recipe for dairy-free diets with a few substitutions. Replace the cream cheese with dairy-free cream cheese alternatives made from cashews or coconut. Use coconut cream instead of sour cream, and substitute the shredded cheese with dairy-free cheese shreds. Keep in mind that the texture and flavor will differ slightly from the original, but it will still be delicious. Nutritional yeast can also add a cheesy flavor without actual dairy.
How can I add more spice to this recipe?
There are several ways to increase the heat level in your taco casserole. Add more fresh jalapeños or include serrano peppers for extra kick. You can also use spicy taco seasoning or add cayenne pepper, crushed red pepper flakes, or hot sauce to the meat mixture. For a smoky heat, incorporate chipotle peppers in adobo sauce. Top the finished casserole with sliced fresh jalapeños or drizzle with your favorite hot sauce before serving.
Conclusion
This Low Carb Taco Casserole proves that healthy eating doesn’t mean sacrificing flavor or satisfaction. By swapping out high-carb ingredients for nutrient-dense alternatives, you can enjoy all the bold, zesty flavors of taco night while staying on track with your wellness goals. The combination of seasoned ground beef, creamy cheeses, and colorful vegetables creates a meal that’s both comforting and nourishing.