1 1/2 pound extra Lean ground beef 1/4 C finely chopped onion 1/2 C seasoned breadcrumbs 1/4 C finely chopped green bell pepper 1/4 C ketchup 2 TBSP prepared mustard 1/2 tsp garlic minced 1 tsp diced oregano 1/4 tsp salt 1/4 tsp freshly ground black pepper 1 large egg, beaten cooking spray 2 TBSP…