Tomato Corn Salad

Ingredients

• 2-1/4 cups cooked fresh or frozen white corn, thawed
• 2-1/4 cups cooked fresh or frozen yellow corn, thawed
• 1 medium cucumber, diced
• 2 medium tomatoes, chopped
• 1/4 cup chopped red onion
• 1/4 cup reduced-fat sour cream
• 2 tablespoons reduced-fat mayonnaise
• 1 tablespoon white wine vinegar
• 1/2 teaspoon salt
• 1/4 teaspoon celery seed
• 1/4 teaspoon ground mustard