This is one of my very favorite roasted vegetable dishes. It is great as a side dish or served as an appetizer. Sometimes I add crumbled feta cheese and minced parsley after I pull it out of the oven and top it on a sliced hard crusted bread.
Spread the tomato paste onto a 3 1/2-quart baking dish to cover the bottom. In a large bowl combine the remaining ingredients. Toss to coat. Pour the vegetables over the tomato paste in an even layer. Cover the baking dish with a lid or foil and bake for 20 minutes. Remove the lid/foil and bake until the edges of the vegetables are golden, about 40 minutes.