Roasted Vegetables and Orzo

olive oil

red onion, chopped

zucchini, sliced into 1/4 inch disks

summer squash, sliced into 1/4 inch disks

eggplant sliced into 1/4 inch disks

red peppers, sliced into quarters

portabella mushrooms

salt and pepper

orzo

dried cranberries, chopped

green onions, chopped

balsamic vinegar (or more)