1 (1 lb.) can green beans, drained
1 (1 lb.) can yellow wax beans, drained
1 (1 lb.) can red kidney beans, drained
1/2 c. minced onion
1/2 c. salad oil
1/2 c. cider vinegar
1/2 c. sugar
1 tsp. salt

Several days ahead: place the three kinds of beans in bowl. Then add onion. Mix oil, vinegar with sugar and salt; pour over beans. Toss well. Refrigerate for 3 days.