Beef and Mushroom Cups with Cheddar Cheese

I've made filled cups using muffin pans
at times with won-ton wrappers.
This recipe calls for white bread.
You can add a slice of bacon for flavor
but I prefer it made without.

Ingredients:
12 slices Bread
3 tablespoons softened butter
1 1/4 lb. ground beef
1 egg
1 small onion, chopped
1 (10.75 ounces) can
condensed cream of mushroom soup
3/4 cup shredded cheddar cheese
Salt and pepper to taste

Directions:
Preheat oven to 350 degrees F.
Butter one side of each slice of bread
and press each slice butter-side down
into the cups of a muffin tin.
In a medium bowl, mix together the beef,
egg, onion, cream of mushroom soup,
salt and pepper until well blended.
Fill each bread cup with the mixture.
Sprinkle shredded cheddar cheese over the tops.
Bake for 30 minutes until meat is cooked through.