If you love tacos but want to keep your meals low-carb, this Keto Taco Casserole is the perfect solution. It combines seasoned ground beef, creamy cheese, and bold Mexican flavors in a hearty baked dish that’s satisfying without the tortillas.
This recipe is incredibly easy to prepare, making it ideal for busy weeknights or meal prep. With only a few ingredients and simple steps, you can enjoy all the flavors of taco night while staying keto-friendly.
Many keto casseroles replace high-carb ingredients with vegetables like cauliflower and rely on cheese and spices to create a rich and comforting dish.
Why You’ll Love This Keto Taco Casserole
There are many reasons why this dish has become a favorite among low-carb enthusiasts:
- Low in carbohydrates – perfect for keto or low-carb diets
- Easy to prepare – minimal prep and simple cooking steps
- Family-friendly – everyone loves cheesy taco flavors
- Meal prep friendly – stores well for several days
- Highly customizable – you can add your favorite toppings or vegetables
With savory taco meat, melted cheese, and a creamy base, this casserole is satisfying enough to replace traditional tacos.
Ingredients
Here are the ingredients you’ll need to make this delicious keto taco casserole.
Main Ingredients
- 1 tablespoon olive oil
- ¼ cup diced onion
- 1 jalapeño, seeded and diced
- 1 pound ground beef
- 4 ounces cream cheese, cubed
- 2 tablespoons sugar-free taco seasoning
- 10 ounces diced tomatoes with green chilies
- ½ cup sour cream
- ¾ cup shredded cheddar cheese
These ingredients create a creamy, flavorful taco filling that becomes the base of the casserole.
Optional Toppings
You can customize your casserole with classic taco toppings such as:
- Fresh diced tomatoes
- Sliced avocado
- Sour cream
- Chopped cilantro
- Black olives
- Shredded lettuce
- Jalapeño slices
These toppings add freshness and texture to the dish.
Step-by-Step Instructions
1. Preheat the Oven
Preheat your oven to 350°F (175°C) and lightly grease a casserole dish with cooking spray.
2. Cook the Vegetables
Heat olive oil in a large skillet over medium heat.
Add diced onion and jalapeño and cook for about 5 minutes, until softened and fragrant.
3. Brown the Ground Beef
Add the ground beef to the skillet.
Cook while breaking the meat apart with a spoon until it is fully browned. Drain excess fat if needed.
4. Add the Cream Cheese
Add the cubed cream cheese and stir until it melts and becomes fully incorporated into the meat mixture.
5. Add Seasonings and Tomatoes
Sprinkle in the taco seasoning and stir in the diced tomatoes with chilies.
Cook the mixture for about 3 minutes to blend the flavors.
6. Stir in Sour Cream
Remove the skillet from heat and stir in the sour cream.
This adds a creamy texture and balances the spices.
7. Assemble the Casserole
Transfer the taco mixture into the prepared baking dish and spread evenly.
Sprinkle shredded cheddar cheese over the top.
8. Bake
Bake the casserole for 20 minutes until the cheese is melted and bubbly.
9. Serve
Allow the casserole to cool slightly before serving.
Top with your favorite taco toppings and enjoy.

Nutrition Information (Approximate per serving)
- Calories: ~390 kcal
- Protein: ~19 g
- Fat: ~32 g
- Net carbs: ~6 g
These macros make this recipe perfect for anyone following a ketogenic or low-carb diet.
Tips for the Best Keto Taco Casserole
1. Use quality ground beef
80/20 ground beef gives the best flavor and texture.
2. Adjust the spice level
Add extra jalapeños or chili powder if you like spicy food.
3. Try different cheeses
Cheddar works great, but you can also use:
- Monterey Jack
- Pepper Jack
- Mexican cheese blend
4. Add low-carb vegetables
Some keto cooks add vegetables like cauliflower or zucchini for extra texture and fiber.
How to Store Leftovers
This casserole stores very well, making it great for meal prep.
- Refrigerator: Store in an airtight container for up to 4 days
- Freezer: Freeze for up to 2–3 months
- Reheating: Warm in the oven or microwave until heated through
What to Serve with Keto Taco Casserole
You can serve this dish with:
- Cauliflower rice
- Keto tortillas
- Avocado salad
- Mexican cauliflower rice
These sides keep the meal low-carb while complementing the taco flavors.
✔ Final Tip:
Keto Taco Casserole is the perfect combination of comfort food and healthy eating. It’s cheesy, flavorful, and incredibly easy to prepare—making it a staple recipe for anyone following a low-carb lifestyle.