1. Cut tomatoes in half and place on roasting pan. Drizzle with oil and roast at 200 degrees for about 1 1/2 hours or until blistered.
2. Cook orzo according to package directions.
3. Combine orzo with tomatoes and oil from the pan. Toss with basil. Let cool. Add a little extra olive oil if needed.
4. When cooled, toss with feta. Serve.