Cheesy Tex-Mex Ground Beef Casserole with Cauliflower Rice Tips, FAQ & printable recipe

Tips for success

To elevate the flavor profile of this casserole even further, consider adding a pinch of smoked paprika, ground chipotle, or a dash of hot sauce to the ground beef while browning. This adds a subtle smoky undertone that pairs beautifully with the sharp cheddar cheese.

Additionally, letting the baked casserole rest on the counter for at least five minutes is crucial, as this brief cooling period allows the melted cheese binder to firm up, making it much easier to slice into clean, beautiful squares.

If you prefer an extra-crispy, blistered cheese topping, switch your oven to the broil setting during the final two minutes of baking. Watch the casserole very closely during this time to prevent the cheese from burning.

This quick step creates a gorgeous, textured crust that offers a delightful crunch, contrasting beautifully with the tender, savory layers of beef and cauliflower underneath.

Variations

• Spicy Jalapeño: Stir in one finely diced fresh jalapeño pepper to the ground beef while browning to add a fiery kick to the casserole.
• Monterey Jack Swap: Substitute half of the cheddar cheese with shredded Monterey Jack or Pepper Jack cheese for a creamier, spicier melt.

Storage and make-ahead

Fridge

Keep leftovers in an airtight container in the refrigerator for up to 4 days.

Freezer

Freeze the baked and cooled casserole wrapped tightly in foil for up to 3 months. Thaw in the fridge before reheating.

Reheat

Reheat individual portions in the microwave for 1-2 minutes, or the entire dish in a 350°F (175°C) oven for 15 minutes until hot.

Store any leftover casserole in an airtight container in the refrigerator for up to four days. To maintain the best quality, allow the dish to cool completely at room temperature for no more than two hours before sealing and refrigerating. This prevents condensation from building up inside the container, which could make the cheese topping soggy when stored.

This casserole is exceptionally freezer-friendly and perfect for advance meal prep. You can fully assemble the dish, cover it tightly with plastic wrap and foil, and store it in the refrigerator for up to 24 hours before baking.

When you are ready to serve, simply remove the plastic wrap, cover with foil, and bake, adding about ten extra minutes to the baking time to ensure it heats through completely.

Serving ideas

Serve this comforting casserole hot, sliced into generous squares. It pairs wonderfully with a variety of fresh, cool toppings that contrast the rich, warm flavors of the dish.

Set out small bowls of sour cream, sliced jalapeños, chopped fresh cilantro, and diced tomatoes so guests can customize their plates. A squeeze of fresh lime juice over the top adds a bright, acidic finish.

For a complete and satisfying meal, serve the casserole alongside a crisp, refreshing green salad tossed in a tangy lime vinaigrette, or with a side of warm tortilla chips and fresh guacamole. The acidity from a salad or fresh salsa cuts through the richness of the melted cheddar cheese and seasoned beef, balancing the entire plate beautifully.

Frequently asked questions

Recipe card

Cheesy Tex-Mex Ground Beef Casserole with Cauliflower Rice

Prep 15 minCook 25 minRest 5 minTotal 45 minServes 6

Ingredients

• 1 1/2 lbs ground beef
• 1 packet taco seasoning
• 4 cups cauliflower rice, thawed and squeezed dry
• 2 cups cheddar cheese, shredded and divided

Instructions

1. Add the ground beef to a large skillet over medium-high heat, breaking it up with a spatula as it cooks. Sauté for 6 to 8 minutes until the meat is completely browned and no pink remains. Drain any excess grease from the skillet.
2. Sprinkle the taco seasoning over the browned beef and stir well to coat. Pour in a splash of water if needed to help distribute the spices. Cook for an additional 2 minutes until fragrant and the beef reaches an internal temperature of 160°F (71°C).
3. In a medium mixing bowl, combine the squeezed-dry cauliflower rice with half of the shredded cheddar cheese. Stir in a pinch of salt and pepper to ensure the cauliflower is well-seasoned and the cheese is evenly distributed.
4. Spread the seasoned cauliflower rice mixture evenly into the bottom of the prepared baking dish, pressing down gently. Layer the seasoned ground beef over the cauliflower rice, then top with the remaining shredded cheddar cheese.
5. Place the baking dish in the preheated oven and bake at 375°F (190°C) for 15 to 20 minutes. The casserole is ready when the cheese is fully melted, bubbling energetically around the edges, and starting to turn golden brown.

Contains: milk

Estimated nutrition per serving

Calories

420

Protein

30.7 g

Carbohydrates

4 g

Fat

31 g

Fiber

1.5 g

Sugar

1.5 g

Sodium

650 mg

Automatic estimate from the ingredient list, not laboratory-verified.