Meatballs:

2 lb. lean hamburger meat
1 egg
1 c. bread crumbs

Sauce:

1 can Campbell's tomato soup
1 tbsp. mustard
1/4 c. brown sugar
1 tbsp. Worcestershire
1 onion
1 bell pepper
2 tbsp. butter

Mix meat, egg and bread crumbs well and roll into small meatballs. Put in oven at 350°F. Brown on one side, then turn meatballs over and brown on other side; drain and set aside. Finely chop onion and bell pepper and sauté in butter until tender. Add 1 can of soup and half a can of water with mustard, brown sugar and Worcestershire; let simmer for 15 minutes. Pour over meatballs and bake at 350°F for 20 minutes.