Heat oven to 350° F.
Place asparagus in a steamer over 1 inch of boiling water, and cover. Cook until tender but still crisp, about 2 to 6 minutes. Drain and place in a shallow baking dish. Lay cheese slices over asparagus.
In a small bowl combine melted butter, bread crumbs and sesame seeds. Sprinkle over cheese. Bake for 8 minutes.
Increase oven to broil. Broil just until breadcrumbs are golden brown.
Servings: 4