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Keto Taco Hamburger Casserole

A cheesy keto taco hamburger casserole made with seasoned ground beef, taco spices, creamy cheese, and low-carb ingredients. This easy one-pan dinner delivers classic taco flavors while keeping carbs low and making a perfect family-friendly keto meal.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6
Course: Dinner, Main Course
Cuisine: American, Mexican-Inspired
Calories: 520
Ingredients Method Notes

Ingredients
  

  • 1 ½ lbs ground beef
  • 1 tablespoon olive oil if needed
  • 1 small onion diced
  • 3 cloves garlic minced
  • 1 medium zucchini diced
  • 1 cup diced bell peppers
  • 1 can 4 oz diced green chilies
  • 2 tablespoons taco seasoning low-carb
  • 1 teaspoon smoked paprika
  • 1 teaspoon cumin
  • ½ teaspoon chili powder
  • ½ teaspoon salt
  • ½ teaspoon black pepper
  • 4 oz cream cheese softened
  • ½ cup sour cream
  • 2 cups shredded cheddar cheese
  • ½ cup shredded mozzarella cheese

Method
 

  1. Preheat oven to 375°F (190°C) and lightly grease a baking dish.
  2. Heat a large skillet over medium heat. Add ground beef and cook until browned, breaking it apart as it cooks.
  3. Add diced onion and garlic to the beef. Cook for 2–3 minutes until softened.
  4. Stir in zucchini, bell peppers, and green chilies. Cook for another 4–5 minutes.
  5. Add taco seasoning, smoked paprika, cumin, chili powder, salt, and black pepper. Mix well to coat the beef and vegetables.
  6. Reduce heat and stir in cream cheese and sour cream until creamy and combined.
  7. Transfer the mixture into the prepared baking dish.
  8. Sprinkle cheddar and mozzarella cheese evenly over the top.
  9. Bake for 15–20 minutes until the cheese is melted and bubbly.
  10. Garnish with cilantro, jalapeños, avocado, or green onions before serving.

Notes

  • Use homemade taco seasoning to avoid added sugars and unnecessary carbs.
  • Ground turkey or chicken can replace ground beef for a lighter option.
  • Add cauliflower rice for extra volume while keeping it keto-friendly.
  • Let the casserole rest for 5–10 minutes before slicing for better texture.
  • Store leftovers in an airtight container for up to 4 days.
  • Freeze individual portions for easy keto meal prep.