cut up all the veggies .. I only use the florets of the broccoli. cut the onion in rings, tomatoes should be cut in slices.
I put all veggies except tomatoes in mixing bowl. put olive oil or melted butter, salt, pepper, garlic powder, lemon juice, thyme, parsley, on veggies and mix by hand to cover..
pour in baking dish lay cut tomatoes on top and sprinkle with salt, pepper, and garlic powder.. put a peice of aluminum foil over the top so the steam helps to cook veggies...
if u want them semi crunchy bake 20 minutes .... if u want them more done cook for 35 minutes at 350°