Italian Turkey Meatloaf

Ingredients (7)

• + 1 pound ground turkey add to pantry
• + 1 cup Italian-style bread crumbs add to pantry
• + 2 eggs add to pantry
• + ¼ cup finely chopped onion add to pantry
• ✓ ¼ cup grated Parmesan cheese
• ✓ ¼ teaspoon ground black pepper
• + 1 (14 ounce) jar marinara sauce, divided add to pantry