Cheesy Bread

1 loaf bakery French bread
1 (8 oz.) pkg. sliced Swiss cheese
2 Tbsp. chopped onion
1 Tbsp. dry mustard
1 Tbsp. poppy seed
1 tsp. seasoned salt
1 c. margarine, melted

Using serrated bread knife cut diagonal slits in the bread, going almost all the way through. Put bread on large piece of foil on baking sheet. Place pieces of cheese in the slits. Combine onion, mustard, poppy seed, seasoned salt and margarine and pour over bread. Wrap foil around bread. Bake at 350° for 35-40 minutes. Serve warm.