Prefab Greek Salad

In an effort to increase the ease of eating salads and decrease their caloric density, I submit to you the prefab salad. The idea is to concoct a mix of cooked beans and chopped veggies and marinate them in a low-calorie dressing of some kind. Then, when it's salad time, you just slop a couple cups of prefab on your bed of pre-shredded greens, and you got yerself an easy salad. The greek variety is one of my favorites, and here is what I put in it today:

2 cans garbanzos (a better woman would have soaked and cooked her own)
2 roma tomatoes
1 cucumber
1/2 can black olives
1/2 of one red onion, minced
a couple tablespoons of Girard's Greek Feta Vinaigrette, watered down with
1/2 c or so red wine vinegar