2 T worcestershire sauce 4 T dijon mustard 1 Can (2.8 oz) french fried onions 1 lb ground beef dried parsley (optional) swiss cheese slices hamburger buns mayo lettuce tomatoes
Combine 1 tablespoon Worcestershire sauce, 3 tablespoons of mustard and half the onions in a large bowl. Mix in the ground beef, and mold into patties. Grill, covered over medium heat, for 6-9 minutes on each side. Serve with mayo, lettuce and tomatoes on hamburger buns.