Low Carb Taco Casserole Recipe
Introduction
This Low Carb Taco Casserole is a hearty and flavorful dish that blends seasoned ground beef, vibrant vegetables, and melted cheese over a bed of cauliflower rice. Perfect for a comforting dinner that’s both satisfying and nutritious.

Ingredients
- 10 ounces frozen cauliflower rice
- 2-3 tablespoons oil
- 2 lbs ground beef
- 1 small red bell pepper, seeded and chopped
- 1 small white onion, chopped
- 4 tablespoons taco seasoning
- 1 tablespoon tomato paste
- 1/2 cup water
- 3 cups shredded Colby/Jack cheese
- 1 cup sour cream
- Toppings: chopped lettuce, chopped tomato, sliced black olives, avocado or guacamole, cilantro, sliced jalapeno, salsa or hot sauce
Instructions
- Step 1: Preheat your oven to 350ºF.
- Step 2: Heat oil in a pan over medium-high heat and pan-fry the frozen cauliflower rice until browned. Transfer the cooked cauliflower rice to a greased 2-quart casserole dish and spread it evenly.
- Step 3: In the same pan, brown the ground beef along with the red bell pepper and onion over medium-high heat. Drain excess fat if needed. Add the taco seasoning, tomato paste, and water, stirring well. Cook until the liquid is mostly absorbed. Spread this mixture evenly over the cauliflower rice in the casserole dish.
- Step 4: Sprinkle the shredded Colby/Jack cheese evenly over the beef layer. Bake the casserole for 10-15 minutes until the cheese melts and bubbles.
- Step 5: Remove the casserole from the oven and spread sour cream over the top. Add extra shredded cheese if desired, then garnish with your favorite toppings such as lettuce, tomato, olives, avocado, cilantro, jalapeno, and salsa.
Tips & Variations
- For extra flavor, consider adding a diced jalapeno to the beef mixture while cooking.
- Substitute the ground beef with ground turkey or chicken for a lighter option.
- Use full-fat sour cream to enhance creaminess and richness.
- Add extra veggies like corn or black beans if you’re not strictly low carb.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or oven until warmed through. To keep the toppings fresh, add them just before serving instead of storing with the casserole.
How to Serve
Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh cauliflower instead of frozen cauliflower rice?
Yes, you can pulse fresh cauliflower florets in a food processor to make your own cauliflower rice. Just cook it the same way you would the frozen rice, though it may take a few minutes longer to brown.
Is this recipe gluten-free?
Yes, this taco casserole is naturally gluten-free as long as you use gluten-free taco seasoning and check that other ingredients like tomato paste and salsa do not contain gluten additives.
