This is my Mom's recipe and it has been a family favorite for many years. Not only is it easy but everyone enjoys it. This would be a great meal to teach your children to prepare. It's always fun to make an assembly line!
1/2 cup butter
1/2 cup mustard
1/4 tsp. onion salt
1 Tbsp. poppy seeds
8 hamburger buns
1 pound ham slices
favorite cheese slices
Mix softened butter, 1/4-1/2 cup mustard, onion salt (onion powder or minced onion works too) and poppy seeds into a nice smooth spread. Spread both halves of hamburger buns. Layer the ham on both sides of the buns as thick as you like it. Place a slice of cheese on one half of each bun, place the other half on top and wrap in aluminum foil. Bake in the oven at 350 for 20 minutes.
I like colby/jack cheese and Hormel Natural Choice deli ham
Spread the mustard mixture as thickly or thinly as you like.
I was able to stretch the spread to make 9 sandwiches.
You can reheat leftovers in the toaster oven.