I like to oven roast Zucchini squash, mushrooms, red pepper and onions and sometimes garlic.
Brussels Sprouts are good roasted if cut in half with diced bacon. If not cut the insides stay bitter and undercooked.
I douse all of it with olive oil garlic salt and pepper and then finish it with butter toward the end.
I roast on the highest setting of 500 so that it roasts and does not turn watery.