Ground Beef Stroganoff Casserole

This low-carb Ground Beef Stroganoff Casserole uses cauliflower rice, and this has all the flavors people love in Beef Stroganoff! This is a dinner the whole family will love.

Ingredients:

•  1 1/2 lbs. ground beef
• 2 T olive oil
• 1 lb. mushrooms, washed, drained dry, and cut into quarters (I used brown Cremini mushrooms)
• 1 onion, chopped small
• 4 cups cauliflower rice (see notes)
• 1 tsp. steak seasoning
• salt and fresh-ground black pepper to taste
• 1 cup grated Mozzarella

SAUCE INGREDIENTS:

• 1 tsp. Better Than Bouillon Beef Base (or a beef bouillon cube) mixed with 1/4 cup water and then simmered to reduce to 1 tablespoon thick stock
• 1 cup sour cream
• 1/2 cup mayo
• 1 cup grated Mozzarella cheese
• 1/4 cup freshly grated Parmesan cheese
• 1/2 tsp. steak seasoning