Five Bean Salad

Ingredients

• 1 (15 ounce) can green beans
• 1 (15 ounce) can wax beans
• 1 (15 ounce) can lima beans
• 1 (15 ounce) can kidney beans
• 1 (15 ounce) can garbanzo beans (chickpeas)
• 1 onion, chopped (I add the next day about an hour before serving, other wise it seems too strong)
• 1 green pepper, chopped (my grandmother's recipe calls for this but we never put it in as we don't care for it)
• 1/2 cup vegetable oil
• 1/2 cup vinegar
• 3/4 cup sugar
• 1 teaspoon salt
• 1 teaspoon pepper
• 1 teaspoon dry mustard
• 1 -2 teaspoon celery seed