Created by Derf on January 31, 2012
Step 1: Preheat oven to 350°F. Melt butter in small saucepan Saute mushrooms and onions until tender and mushroom liquid has evaporated
Step 2: Whisk in flour Gradually whisk in milk Cook and stir over medium heat until mixture comes to a boil and thickens. Add salt and pepper to taste
Step 3: Put together; on bottom half of each bun layer: 1 slice of ham, 1/2 slice of cheese, 1/4 of the mushroom sauce, 1/2 slice of cheese, 1 slice of ham Replace top of bun Place on cookie sheet and bake for 15 minutes or until heated through.