Ham And Cheese Sandwiches - cooking recipe

Ingredients

1/2 lb. butter
3 Tbsp. mustard
1 onion, grated
1 tsp. Worcestershire sauce
ham of your choice
Swiss cheese

Preparation

Mix the first 4 ingredients and spread on a hamburger bun. Add ham and Swiss cheese.
Wrap in foil and bake at 275\u00b0 for 20 minutes.