Preparation / Directions:
Salad Dressing: In a mixing bowl, combine all ingredients. Process in food processor until smooth. Makes 2/3 cup.
Salad: Drain beans in colander. Place in large bowl with peppers. Add 1/2 cup of prepared salad dressing and toss gently. Cover and refrigerate at least 1 hour, preferably overnight. Reserve and refrigerate remaining salad dressing.
In another bowl, toss the onion with the vinegarm sugar and 1/2 teaspoon salt. Cover and refrigerate.
At serving time, adjust seasoning on beans. Add remaining salad dressing, if desired. Garnish with sliced onion mixture.