Preheat oven to 350. Line a baking sheet with foil and coat with cooking spray.
In a large bowl, combine all meatloaf ingredients except add only ½ cup marinara sauce. Use clean hands to mix together, until combined.
Free form loaf on baking pan. Spread top with ½ cup marinara sauce.
Bake for 50 minutes. Remove from oven. Spread ½ cup marinara sauce all over top and sides. Top with Parmesan cheese. Place back in oven for about 5 minutes, for cheese to melt.