Italian Mozzarella-Stuffed Meatloaf

Ingredients (11)

• ✓ 1 ½ pounds ground beef
• + 1 medium onion, chopped add to pantry
• + 1 (8 ounce) can tomato sauce, divided add to pantry
• + ½ cup bread crumbs add to pantry
• ✓ 1 egg
• + 2 cloves garlic, minced add to pantry
• + 1 teaspoon dried oregano, divided add to pantry
• ✓ 1 teaspoon salt
• + ⅛ teaspoon ground black pepper add to pantry
• + 1 ½ cups shredded mozzarella cheese add to pantry
• + 2 tablespoons grated Parmesan cheese add to pantry