Roasted Vegetables Recipe

medium zucchini (cut into 1 - 1 1/2-inch pieces)

medium summer squash (cut into 1 - 1 1/2-inch pieces)

medium onion (cut into 1-inch pieces)

green pepper (cut into 1 - 1 1/2-inch pieces)

red pepper (cut into 1 - 1 1/2-inch pieces)

yellow pepper (cut into 1 - 1 1/2-inch pieces)

whole mushrooms (cut in half)

olive oil

salt and pepper (to taste)