Indulge in the rich flavors of a classic taco casserole, reimagined to fit a ketogenic lifestyle. This Keto Dorito Taco Casserole combines savory seasoned ground beef, creamy cheeses, and a crispy topping reminiscent of traditional Doritos—all while keeping carbohydrate content to a minimum. Perfect for family dinners or meal prepping, this dish offers satisfaction without compromising your dietary goals.
Ingredients:
For the Casserole:
- 1 pound (450g) ground beef (preferably 80% lean)
- 1 medium onion, finely diced
- 2 cloves garlic, minced
- 1 packet (1 ounce) sugar-free taco seasoning
- 1 can (14.5 ounces) diced tomatoes with green chilies, undrained
- 1 cup riced cauliflower (a low-carb alternative to rice)
- 1 cup sour cream
- 1½ cups shredded cheddar cheese
- 24 Nacho Cheese Doritos (approximately 56g), crushed
Optional Garnishes:
- Chopped green onions
- Sliced black olives
- Chopped cilantro
Instructions:
- Prepare the Meat Mixture:
- In a large skillet over medium heat, cook the ground beef until browned, breaking it up as it cooks (about 5–7 minutes). Drain excess fat if necessary.
- Add the diced onion and minced garlic to the skillet. Sauté for 3–4 minutes until the onion becomes translucent.
- Stir in the taco seasoning, ensuring the meat and onions are evenly coated.
- Pour in the diced tomatoes with their juices. Let the mixture simmer for 5 minutes to allow flavors to meld.
- Incorporate the Cauliflower Rice:
- Add the riced cauliflower to the skillet, mixing thoroughly. Cook for an additional 5 minutes, stirring occasionally, until the cauliflower softens and absorbs the flavors.
- Combine with Sour Cream:
- Remove the skillet from heat. Stir in the sour cream until the mixture is well combined.
- Assemble the Casserole:
- Preheat your oven to 375°F (190°C).
- Lightly grease a 9×13-inch baking dish.
- Spread half of the crushed Doritos evenly at the bottom of the prepared baking dish.
- Pour the beef and cauliflower mixture over the Doritos layer, spreading it out evenly.
- Sprinkle the shredded cheddar and Monterey Jack cheeses over the meat mixture.
- Top the casserole with the remaining crushed Doritos, ensuring an even coverage.
- Bake the Casserole:
- Place the assembled casserole in the preheated oven.
- Bake for 15–20 minutes, or until the cheese is melted and bubbly.
- For a crispy top, consider broiling for an additional 2–3 minutes, watching closely to prevent burning.
- Rest and Serve:
- Remove the casserole from the oven and let it rest for 5 minutes before serving.
- Garnish with chopped green onions, sliced black olives, and chopped cilantro if desired.
- Slice into portions and serve warm.

Nutritional Information (Per Serving):
Based on 6 servings.
- Calories: 307 kcal
- Protein: 31g
- Fat: 10g
- Saturated Fat: 4g
- Carbohydrates: 25g
- Fiber: 3.8g
- Net Carbs: 21.2g
- Sodium: 773mg
- Potassium: 266mg
- Calcium: 395mg
- Iron: 2.2mg
Weight Watchers SmartPoints:
5 SmartPoints per serving
Additional Tips:
- Storing and Reheating: Store leftovers in an airtight container in the refrigerator for up to 5 days. Individual portions can be frozen for up to 6 months, making them great for grab-and-go meals. To reheat, thaw if necessary, then warm in the microwave for 30 to 90 seconds.
- Tortilla Options: Traditional Doritos are high in carbohydrates. For a keto-friendly alternative, consider using crushed pork rinds or homemade cheese crisps as the topping.
- Spice Level: Adjust the heat by selecting mild or spicy diced tomatoes with green chilies and choosing your preferred level of taco seasoning.
- Cheese Variations: Feel free to experiment with different cheese blends, such as adding pepper jack for extra spice or using mozzarella for a milder flavor.
- Serving Suggestions: Pair the casserole with a fresh green salad dressed in olive oil and vinegar to complement the rich flavors.
By making thoughtful ingredient choices, this Keto Dorito Taco Casserole delivers the comforting taste of traditional taco casserole while aligning with ketogenic dietary principles. Enjoy this