Preheat oven to 350°F. Spray a rimmed baking pan with nonstick spray; set aside.

Place garlic and oil in large skillet. Cook over medium heat until softened. Add spinach; cook for 3 minutes or until wilted. Remove from heat and set aside.

Combine ground beef, sausage, onion, bread crumbs, eggs, milk, salt and pepper in a large bowl. Combine Sriracha and honey in a small bowl.

Pat meat mixture into a 14-in. square on a large piece of foil. In the center of the meat square, arrange a single layer of mozzarella slices; spoon 3 Tbsp. Sriracha mixture on mozzarella. Sprinkle Asiago cheese and spinach mixture over the Sriracha and mozzarella. Carefully roll the meat into a spiral, starting at one edge; pinch ends to seal.

Place meat roll in prepared baking pan. Wrap bacon slices around the meat, trimming to fit. Bake for 1 hour or until an instant-read thermometer registers 160°F. If desired, place meat loaf under the broiler to crisp the bacon. Drizzle with remaining Sriracha mixture, just before serving. If desired, garnish with parsley.