Crockpot Keto Lasagna Using Cabbage Leaves as the "Noodles"

Ingredients

• 1 medium onion, diced
• 2 tablespoons olive oil
• 1 pound ground beef 85/15
• 1 pound Italian sausage
• 2 cups Roma tomatoes, chopped (about 5 to 6 whole)
• 5 garlic cloves, minced
• 1 teaspoon salt
• 3 tablespoons fresh basil, sliced
• 3 tablespoons fresh parsley, chopped
• 12 oz. tomato paste
• 24 oz. 4% cottage cheese
• 2 eggs
• 1 1/2 cups parmesan cheese, shredded
• 1/2 teaspoon salt
• 1 teaspoon pepper
• 1 pound whole milk, low moisture mozzarella, shredded
• 1 small head of cabbage - 4 to 6 cabbage leaves