Preparation:
In a bowl, beat the egg; stir in onions, bread crumbs and mustard. Add beef and mix well. Shape in four 1/2-inch thick patties. In an ungreased skillet, cook patties for 4-5 minutes on each side or until meat is no longer pink; drain. In a small bowl, combine gravy, water and horseradish; add mushrooms. Pour over patties. Cook, uncovered, for 5 minutes or until mushrooms are tender and heated through. |
