High-Protein Cheesy Taco Casserole
High-Protein Cheesy Taco Casserole
Cheesy taco casserole loaded with seasoned beef and melted cheese — low-carb, sugar-free, and ready in 35 minutes
This high-protein cheesy taco casserole delivers classic taco flavor in a simple baked dish. Seasoned ground beef, tomatoes, and plenty of melted cheese come together for a satisfying low-carb meal that packs 32 g of protein and only 6 g net carbs per serving.
Low-carb, sugar-free, and perfect for weeknight dinners or meal prep.
Why you’ll love this casserole
- 32g protein per serving — a complete high-protein meal
- Only 6g net carbs and fully sugar-free
- All the classic taco flavors in one dish
- Ready in about 35 minutes
- Easy one-pan style with minimal cleanup
- Great for meal prep and leftovers
Health notes
- High protein: Ground beef and cheese deliver a solid protein boost.
- Low carb: No tortillas or rice — just seasoned beef, tomatoes, and cheese.
- Sugar-free: No added sugar in the seasoning or sauce.
- Satisfying: Rich, cheesy, and filling without the carbs.
Key element — drain the beef well
After browning the ground beef, drain excess fat thoroughly. This keeps the casserole flavorful without becoming greasy.
Ingredients
Casserole
- 1½ lbs (680g) ground beef (85–90% lean)
- 1 small onion, diced
- 2 garlic cloves, minced
- 2–3 Tbsp taco seasoning (sugar-free)
- 1 cup diced tomatoes (fresh or canned, drained)
- ½ cup cream cheese, softened
- ½ cup heavy cream or sour cream
- 2 cups shredded Mexican blend or cheddar cheese, divided
- ½ tsp salt (adjust to taste)
- ¼ tsp black pepper
- Optional: diced green chiles or jalapeños for heat
- Fresh cilantro or green onions for garnish
Swaps
- Higher protein: Use extra-lean ground beef or add an extra egg to the mixture.
- Turkey version: Swap ground beef for ground turkey.
- Dairy-free: Use dairy-free cream cheese and cheese alternatives.
- Extra veggies: Stir in diced bell peppers or cauliflower rice.
Instructions
| 1 | Preheat and brown the beef. Preheat the oven to 375°F (190°C). In a large skillet, cook the ground beef and diced onion over medium heat until the beef is browned and the onion is soft. Drain excess fat. Add the garlic and cook 30 seconds more. |
| 2 | Season and mix. Stir in the taco seasoning, diced tomatoes, cream cheese, heavy cream (or sour cream), salt, and pepper until creamy and well combined. Mix in 1 cup of the shredded cheese. |
| 3 | Assemble. Transfer the mixture to a greased 9×13-inch baking dish (or similar). Spread evenly and top with the remaining 1 cup of shredded cheese. |
| 4 | Bake and serve. Bake 15–20 minutes until the cheese is melted, bubbly, and lightly golden. Rest a few minutes, garnish with cilantro or green onions if desired, and serve. |
Pro tips
- Drain the beef well so the casserole stays rich but not greasy.
- For extra taco flavor, add a squeeze of lime juice before serving.
- Let the casserole rest 5 minutes after baking for cleaner scoops.
- This reheats beautifully and is excellent for meal prep.
- Top with avocado, sour cream, or salsa at the table if desired.
Nutrition
| Nutrient | Per serving |
|---|---|
| Calories | 340 |
| Protein | 32g |
| Net carbohydrates | 6g |
| Total carbohydrates | 8g |
| Fiber | 2g |
| Total fat | 20g |
| Sodium | 620mg |
Estimates based on 85% lean ground beef, cheese, cream cheese, and tomatoes. Exact numbers vary with meat lean percentage and cheese brand.
Variations
Spicy taco casserole
Add diced jalapeños or a pinch of cayenne to the beef mixture.
Chicken taco version
Swap the ground beef for shredded cooked chicken or ground chicken.
Loaded
Top with diced avocado, sour cream, and fresh cilantro after baking.
Cauliflower rice base
Stir in 1–2 cups cooked cauliflower rice for extra volume and fiber.
Storage
| Method | Time | Notes |
|---|---|---|
| Refrigerator | Up to 4 days | Store covered |
| Freezer | Up to 2 months | Freeze in portions for easy reheating |
| Reheat | Oven or microwave | Cover to keep moisture; add a splash of cream if needed |
FAQ
Test your knowledge
5 quick questions about this cheesy taco casserole
1. Protein per serving?
2. Net carbs per serving?
3. Why drain the ground beef?
4. About how long does this take?
5. Best way to store leftovers?
