Italian Sloppy Joes

Ingredients

• 1 pound ground beef
• 1 pound ground Italian sausage
• 1/2 cup onion, diced
• 2-3 cloves garlic, minced
• 1 (15-ounce) can tomato sauce
• 1 (6-ounce) can tomato paste
• 1 teaspoon oregano
• 1/2 teaspoon fennel seed
• 1 teaspoon Italian seasoning
• 1/4 teaspoon red pepper flakes
• 1 tablespoon sugar
• salt, to taste
• pepper, to taste
• 2 tablespoons fresh parsley, chopped
• 6 tablespoons butter, melted
• 1 teaspoon garlic salt
• 16 ounces mozzarella cheese, sliced
• 2 loaves Italian bread, cut in half lengthwise