Mix butter, mustard, poppy seed, and onion. Spread on buns (inside top and bottom halves). ... foil. Bake 20 minutes at 375 degrees or until ... and used for appetizers.
Blend together the first 4 ... this mixture on hamburger bun. Then spread Cheddar cheese. ... ham between the buns. Wrap in foil and heat 25 minutes in a 325 degree oven. ... approximately 1 dozen sandwiches.
Combine the mustard, mayonnaise, and ... on the bottom buns. Top with 3-4 slices ... sandwiches for 15 minutes at 350 degrees or microwave it for 30 seconds. These sandwiches can be ... cheese equals 70 sandwiches.