This low-carb taco casserole delivers all the savory, cheesy goodness of a classic taco night without the extra carbohydrates. By layering seasoned lean ground meat with creamy toppings and crisp, fresh vegetables, it creates a satisfying, high-protein meal that is excellent for family dinners or weekly meal prep.
Ingredients
1.5 lbs lean ground beef (or ground turkey/chicken)
1 packet low-sodium taco seasoning (or homemade taco spice blend)
1/3 cup water
1 cup reduced-fat sour cream (or plain Greek yogurt for extra protein)
1.5 cups reduced-fat Mexican blend cheese, shredded and divided
2 cups iceberg or romaine lettuce, shredded
2 medium tomatoes, diced
1/4 cup black olives, sliced
1 small jalapeño, sliced into rounds (optional, for heat)
Fresh cilantro, chopped (for garnish)
Instructions
1. Brown and Season the Meat
Preheat your oven to 350°F (175°C). Lightly spray a 9×13-inch baking dish with non-stick cooking spray.
Heat a large skillet over medium-high heat. Add the ground beef (or turkey) and cook until entirely browned, breaking it apart with a spatula as it cooks. Drain any excess grease.
Reduce the heat to low, stir in the taco seasoning and water, and let it simmer for 3 to 5 minutes until the liquid reduces and the meat is thoroughly coated.
2. Bake the Base and Cheese
Transfer the seasoned ground meat into the bottom of your prepared baking dish, smoothing it into an even layer.
Sprinkle 1 cup of the shredded Mexican blend cheese evenly over the top of the meat.
Place the dish in the oven and bake for 10 to 12 minutes, just until the cheese layer is completely melted, bubbly, and hot. Remove from the oven and let it cool for 5 minutes so the toppings don’t melt instantly.
3. Layer the Creamy Base
Carefully spread the sour cream (or plain Greek yogurt) over the warm cheese and meat layer using the back of a spoon or an offset spatula to form a smooth, cooling barrier.
4. Pile on the Fresh Toppings
Evenly scatter the shredded lettuce across the creamy layer.
Follow with the diced tomatoes, sliced black olives, and jalapeño rounds, distributed uniformly across the top to match the vibrant, loaded layout pictured in the image.
Finish by sprinkling the remaining 1/2 cup of shredded cheese and a handful of fresh chopped cilantro over everything.
5. Slice and Serve
Cut the casserole into squares and serve immediately while the base is warm and the veggie toppings stay cool and crisp.
💡 Recipe Variations for Content Creation
Since this is an excellent fit for recipe pages, here are two quick variations you can share with your audience in the comments or descriptions to boost engagement:
The Cauliflower Rice Upgrade: For an even bulkier, hearty dish that stays entirely low-carb, mix 2 cups of sautéed, seasoned cauliflower rice directly into the taco meat before adding it to the baking dish.
Meal Prep Customization: If saving this for weekly lunches, keep the baked meat/cheese base separate from the cold toppings. Heat up the base when ready to eat, then add the fresh lettuce, sour cream, and tomatoes right before serving to keep the veggies perfectly crisp!