Ground Beef Cauliflower Casserole (Printable)

Savory beef and cauliflower rice baked with sour cream and melted cheddar for a satisfying low-carb dinner.

# Ingredient List:

→ Meats

01 - 1 lb lean ground beef

→ Vegetables

02 - 1 medium onion, finely chopped
03 - 3 cloves garlic, minced
04 - 4 cups cauliflower rice (fresh or frozen)
05 - 1 medium red bell pepper, diced
06 - 1 cup baby spinach, chopped (optional)

→ Dairy

07 - 1 cup sour cream
08 - 1 cup shredded cheddar cheese
09 - 1/2 cup shredded mozzarella cheese

→ Pantry

10 - 2 tbsp olive oil
11 - 1 tsp dried oregano
12 - 1 tsp dried basil
13 - 1/2 tsp smoked paprika
14 - 1/2 tsp salt
15 - 1/2 tsp black pepper
16 - 1/4 tsp crushed red pepper flakes (optional)

→ Garnish

17 - 2 tbsp fresh parsley, chopped

# Steps:

01 - Preheat your oven to 375°F.
02 - Heat olive oil in a large skillet over medium heat. Sauté onion and red bell pepper for 3-4 minutes until softened.
03 - Add minced garlic and cook for 1 minute, stirring frequently to prevent burning.
04 - Add ground beef to the skillet, breaking it apart with a spatula. Cook until browned, about 5-7 minutes. Drain excess fat if needed.
05 - Stir in oregano, basil, smoked paprika, salt, black pepper, and red pepper flakes. Mix well to distribute spices evenly.
06 - Add cauliflower rice and baby spinach (if using). Cook for 4-5 minutes until cauliflower is tender and any liquid has evaporated.
07 - Remove skillet from heat. Stir in sour cream and half of the cheddar cheese until well combined.
08 - Spread the mixture evenly into a greased 9x13-inch baking dish.
09 - Sprinkle remaining cheddar cheese and all mozzarella cheese over the top.
10 - Bake for 20 minutes, or until cheese is bubbly and golden brown.
11 - Let casserole rest for 5 minutes before serving. Garnish with fresh parsley and serve warm.

# Expert Tips:

01 -
  • You get all the comfort of a cheesy beef casserole without the heavy pasta crash afterward
  • The leftovers actually taste better the next day, making it perfect for meal prep
02 -
  • Draining excess fat from the beef prevents the casserole from becoming greasy as it bakes
  • Frozen cauliflower rice works perfectly here, just make sure to squeeze out any extra moisture
03 -
  • Grating your own cheese instead of buying pre-shredded makes a huge difference in how smoothly it melts
  • If the cauliflower seems especially wet, squeeze it in a clean towel before adding it to the skillet

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