Keto Tuscan Meatballs

Combine Cheddar cheese, Parmesan cheese, onions, garlic, Italian seasoning, cayenne pepper, salt, and black pepper in a large mixing bowl and lightly mix. Add beef and turkey; mix by hand until well combined. Form mixture into 8 large meatballs.

Heat 1 to 2 tablespoons butter in a large saute pan over medium heat. Add meatballs to the melted butter and cook, uncovered, turning occasionally until a crust forms, 10 to 15 minutes. Cover and cook on low heat, turning occasionally, for 10 to 15 minutes more. Transfer meatballs to a serving dish and cover.

Add remaining butter to the pan and melt over low heat. Add spinach and stir until well wilted, about 5 minutes. Add cream and water; cook until reduced, 3 to 5 minutes. Add cooked meatballs and cook, 5 to 10 minutes, turning meatballs over every other minute.