3/4 cup marinara divided
1 cup mozzarella cheese shredded, divided
1/4 cup parmesan cheese finely grated
3/4 cup bread crumbs
1 egg lightly beaten
1 tbsp. Worcestershire sauce
1 tbsp. fresh oregano minced
1 tbsp. flat leaf parsley minced
1 pound Italian sausage casing removed, crumbled
1/2 pound lean ground beef
1 tsp. fine sea salt
3 cloves garlic minced
1/2 cup white onion minced
1 tbsp. milk
1 cup Italian or white bread crusts removed