Three Bean Salad

1 can kidney beans
1 can garbanzo beans (chick peas)
1 can green beans
1/4 cup balsamic vinegar
3 tablespoons spicy mustard (or whatever kind you prefer)
1 tablespoon oil

Whisk vinegar and spicy mustard together in a medium sized bowl. Add oil while mixing.

Open, rinse and drain all beans.

Add beans to dressing mixture.
Toss until coated.

Serve or refrigerate until serving.