8 slices ham, sliced
1 1/2 tablespoons butter
8 ounces sharp Cheddar cheese, diced
8 slices Swiss cheese, diced
2 tablespoons dried minced onion
4 slices Italian sausage
4 slices salami
Place ham slices into a large bowl or platter, and sprinkle with butter. Shape cheese into 1/2 inch thick slices. Cut slices in half to make 2 cheese slices. Spread in the bottom of a lightly greased 9x13 inch baking dish. Sprinkle the sliced ham over the cheese slices, and top with sausage and sausage. Sprinkle with the minced onion and sprinkle with Cheddar cheese. Pour over sausage, ham and cheese. Sprinkle with 1/2 cup shredded Cheddar cheese. Carefully roll edges of ham mixture into long strips.
Bake in preheated oven for 2 hours. Turn every 35 minutes or until cheese is bubbly and golden brown.