In order to prepare Ratatouille Nicoise with Roasted Vegetables, you will need the following: tomato sauce, zucchini, egg plant, fennel bulb, olive oil, red and yellow peppers, and a whole garlic bulb.
You will need to make a marinara sauce in advance and set it aside. Pierce the peppers with a knife. Quarter the zucchini lengthwise. After the zucchini is roasted, you will be able to easily remove the seeds, if you cut it lengthwise. Place all of the vegetables on a tray. Pour olive oil over them. Roast them in the oven at 325 degrees for 20-40 minutes.