1 can green beans, drain off water
1 can yellow wax beans, drain off water
1 can kidney beans, put in strainer and run cold water over them
1 med. onion, diced

Place in large bowl and mix well.

DRESSING:

3/4 c. sugar
1/4 c. salad oil
2/3 c. vinegar
1 tsp. salt

Mix well and let stand until sugar is dissolved. Pour dressing over beans and mix. Let stand overnight.