Low Carb Taco Casserole Recipe

Introduction

This Low Carb Taco Casserole is a delicious, satisfying meal that combines bold taco flavors with the goodness of cauliflower rice. It’s a perfect dish for those looking to enjoy a hearty dinner without the extra carbs.

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

1. Step 1: Preheat the oven to 350ºF (175ºC).
2. Step 2: Heat oil in a pan over medium-high heat and pan-fry the frozen cauliflower rice until it browns slightly. Transfer the cooked cauliflower rice to a greased 2-quart casserole dish and spread it evenly.
3. Step 3: In the same pan, brown the ground beef with the chopped red bell pepper and onion over medium-high heat. Drain any excess fat if needed. Add the taco seasoning, tomato paste, and water; stir well and cook until the liquid is absorbed.
4. Step 4: Spread the seasoned ground beef mixture evenly over the cauliflower rice in the casserole dish.
5. Step 5: Sprinkle shredded Colby/Jack cheese over the beef layer and bake the casserole for 10-15 minutes until the cheese melts and bubbles.
6. Step 6: Remove from the oven, spread sour cream evenly on top, and sprinkle with additional shredded cheese if desired. Add your favorite toppings like lettuce, tomato, olives, avocado, cilantro, jalapeno, salsa, or hot sauce before serving.

Tips & Variations

• For extra flavor, add chopped garlic or jalapeno to the ground beef mixture while cooking.
• Swap ground beef for ground turkey or chicken for a leaner option.
• Use full-fat cheese and sour cream for a richer texture, or choose lighter versions to reduce calories.
• Try adding black beans or corn if you want a slightly higher carb count and more texture.

Storage

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the microwave or oven until warm. Adding fresh toppings after reheating keeps the flavors bright and fresh.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I use fresh cauliflower rice instead of frozen?

Yes, fresh cauliflower rice works well. Just cook it briefly until tender before layering in the casserole.

Is this recipe suitable for meal prep?

Absolutely. This casserole keeps well in the fridge and can be made ahead for quick meals throughout the week.

Low Carb Taco Casserole Recipe

Print Recipe

★★★★★

4.6 from 88 reviews

This Low Carb Taco Casserole is a flavorful and hearty dish perfect for a satisfying, keto-friendly meal. Featuring a base of pan-fried cauliflower rice layered with seasoned ground beef, colorful vegetables, and plenty of melted Colby-Jack cheese, it’s topped with creamy sour cream and fresh, zesty toppings like lettuce, tomato, olives, and jalapenos for a delicious taco-inspired casserole without the carbs.

• Author: Daniel
• Prep Time: 15 minutes
• Cook Time: 25 minutes
• Total Time: 40 minutes
• Yield: 6–8 servings 1x
• Category: Casserole
• Method: Stovetop
• Cuisine: Mexican-inspired
• Diet: Low Carb

Ingredients

Scale 1x2x3x

Main Ingredients

• 10 ounces Frozen Cauliflower Rice
• 2–3 Tablespoons Oil (for frying)
• 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

1. Preheat Oven: Preheat your oven to 350ºF (175ºC) to prepare for baking the casserole.
2. Cook Cauliflower Rice: Heat 2-3 tablespoons of oil in a pan over medium-high heat. Add the frozen cauliflower rice and pan fry it until it’s nicely browned, which adds flavor and removes excess moisture. Then, transfer the browned cauliflower rice to a greased 2-quart casserole dish and spread it out evenly.
3. Cook Ground Beef Mixture: In the same or separate pan, brown the ground beef along with the chopped red bell pepper and white onion over medium-high heat. Once cooked, drain any excess fat if necessary. Add the taco seasoning, tomato paste, and water to the beef mixture. Stir well and continue cooking until the liquid has mostly absorbed. Then, layer this meat mixture evenly over the cauliflower rice in the casserole dish.
4. Add Cheese and Bake: Sprinkle 3 cups of shredded Colby/Jack cheese evenly on top of the beef layer. Place the casserole dish in the preheated oven and bake for 10-15 minutes, until the cheese melts and starts to bubble.
5. Finish and Add Toppings: Remove the casserole from the oven and spread 1 cup of sour cream evenly over the top. Sprinkle with additional shredded cheese if desired and garnish with your preferred toppings like chopped lettuce, tomato, sliced black olives, avocado or guacamole, fresh cilantro, sliced jalapenos, and salsa or hot sauce for added flavor and texture. Serve warm.

Notes

• You can use any oil with a high smoke point for frying, such as avocado oil or olive oil.
• Adjust taco seasoning to taste, especially if it contains salt or sugar.
• For a dairy-free option, substitute cheese and sour cream with vegan alternatives.
• If you prefer spicier, add extra jalapenos or hot sauce inside the casserole before baking.
• The casserole is best served fresh but can be refrigerated for up to 3 days and reheated.
• Double the recipe for larger gatherings and use a larger casserole dish accordingly.

Keywords: Low Carb, Taco Casserole, Cauliflower Rice, Ground Beef, Keto, Mexican-inspired, Healthy Dinner