Stuffed Mushrooms Regi Dean's Recipes 08/22/99 Appetizers Nita {*****} Bread Crumbs (dry) 2 TBSP. Butter 1 TBSP. Chopped Onion 1 TBSP. Large Mushrooms 1 pint Mustard 2 tsp Worcestershire Sauce 1/4 tsp {**********} Wash and stem mushrooms. Soak caps in boiling water for 5 minutes Chop stems and cook with butter and onion until tender. Add crumbs, mustard, and Worcestershire sauce. Fill cups and broil.