Swiss Tuna Bake

4 cups cooked egg noodles

1 1/2 cups Swiss cheese

1 cup mayonnaise

1 can tuna, drained and flaked

1 cup seasoned bread crumbs

In a bowl, combine noodles, cheese, mayonnaise, and tuna.  Sprinkle 1/2 cup of bread crumbs into a greased 9 inch dish.  Spread noodle mix over crumbs.  Sprinkle with the rest of the crumbs.  Bake at 350 for 20 minutes.