2 cans regular cut green beans
1/3 c. chopped purple onion
1 lg. tomato
1/2 to 2/3 c. mayonnaise

Drain beans and put in large bowl. Add onion (sliced) and large chunks of tomato and toss with mayonnaise. You can adjust the amount of mayonnaise to meet your preference. Salt and pepper. Can chill or serve at room temperature.