Instructions

  1. Place ground beef in a large mixing bowl. sprinkle with crushed Ritz.
  2. In a separate bowl, stir the remaining ingredients together, then hand mix into the hamburger.
  3. Using an icecream scoop, place 2 scoops, one on top of the other, onto a cookie sheet.
  4. Repeat using all the hamburger, form into patties.
  5. Chill for 3-4 hours, then grill til done.
  6. Meanwhile, melt the butter in a saucepan, fry the mushrooms and onions until golden.
  7. Serve burgers on a fresh bun, top with mushrooms and onions.