Three Bean Salad

1 can green beans (drained)
1 can garbanzo beans (drained)
1 can kidney beans (rinse & drain)
½ cup chopped onion
½ cup chopped green pepper
3/4 cup sugar
2/3 cup white vinegar
½ cup oil
Dash pepper

Mix all ingredients! Let marinate overnight, Stir every few hours. Refrigerate.