Vegetable Relish
["24 oz. pkg. frozen mixed vegetables", "1 c. sugar", "2 tsp. salt", "2 Tbsp. flour", "1/2 c. vinegar", "1 c. water", "2 Tbsp. mustard", "1 c. celery, chopped", "1 large onion, chopped", "1 large green pepper, chopped"]
["Cook frozen vegetables as directed on package.", "Drain and cool."]
["frozen mixed vegetables", "sugar", "salt", "flour", "vinegar", "water", "mustard", "celery", "onion", "green pepper"]