Pesto Tossed Corn, Leeks, and Green Bean Side without onion

3 ears fresh corn (cut off the cob) 2 cups fresh green beans (cooked, cut in half) 1 medium leek (cooked and cut in small 1/4 in half moon shapes) 2[...]

1 tablespoon olive oil 1 large vidalia onions or 1 large sweet onion , chopped 1 red bell pepper , seeded and diced 3 large tomatoes , ripe, peeled, seeded,[...]