Preheat oven to 425 degrees
Combine vegetables (minus tomatoes) in a roasting pan. Top with olive oil and and bake for 35-40 minutes. Remove from oven and cool.
Meanwhile bring a large pot of lightly salted water to boil . Cook pasta according to package directions.
Combine vegetable mixture, cooked pasta, tomatoes and feta cubes. Add salad dressing to taste and toss until well mixed. Chill for a few hours to mingle flavors. Enjoy cold!