12 oz. Swiss cheese
2 tbsp. grated onion
1 tbsp. dry mustard
1/2 tsp. Lawry's Seasoned Salt
1 tsp. lemon juice
1/2 lb. butter
1 tbsp. poppy seed
1 loaf Vienna bread

Cut bread diagonally in both directions only to bottom of crust. Stuff all cuts with cheese. Place in large foil. Melt butter, then add all remaining ingredients except the poppy seeds to the butter. Pour mixture over the loaf, top with seeds. Seal foil and bake for 45 minutes at 350.