Measure 1 cup saltine crumbs; reserve remaining for topping. Mix with melted ma rgarine. Pat into bottom and sides of a 10 inch pie plate. Layer crab or ham, o nion, mushrooms and 8 ounces of cheese (reserve remaining for top) carefully on crust in order listed. Mix eggs, sour cream and mushroom liquid; pour over fil ling. Sprinkle remaining crumbs on top. Top with remaining 2 ounces Swiss chees e. Bake at 375 degrees for 35-40 minutes until middle is set. Let cool 10 minut es before serving. Recipe from "One Million Recipes CD" busted by Judy R.