The pasta serves as another ingredient in this salad, not the predominant one.  The vegetables can be grilled or roasted over high heat. ¼ c olive oil 1 red onion 2 red peppers 1 zucchini, halved 1 eggplant, sliced into half-inch rounds ½ a basket (4oz) heirloom cherry tomatoes, halved 1 medium sized beefsteak or…