Recipe - Mushroom-Onion Topper

1 tablespoon Margarine Or Butter
1 Onion; Thinly Sliced
4 ounce Mushrooms; 1 can, *
One half teaspoon Worcestershire Sauce
1/8 teaspoon Pepper

* Use 1 4oz can of mushroom stems and pieces.
Melt margarine in a small skillet. Add onion slices and cook and stir
until tender. Stir in remaining ingredients and heat through. Serve,
hot, over patties.