Combine ground beef with 1/2 can tomato sauce, eggs, bread crumbs, onion, salt, pepper and 1/2 tsp garlic powder. Using an ice cream scoop portion into a lightly sprayed muffin tin. Bake at 350 for 25-30 minutes.
Combine remaining tomato sauce with parsley flakes, Worcester sauce and 1/2 tsp garlic powder. Remove from oven and cover with sauce. Cook for an additional 5 minutes.