Photo of Oven-roasted ratatouille by WW

Oven-roasted ratatouille

SmartPoints® value per serving
Total Time
2 hr 20 min
25 min
1 hr 55 min
This ratatouille features a fantastic mix of flavors, with fresh tomatoes, bell peppers, zucchini, and eggplant. Enjoy as a side dish, tossed with pasta, or as an omelet filling—the possibilities are endless, and conveniently all come together in the oven...though the key to this recipe's success starts before it hits the oven. It’s actually all in your chopping technique. Cut the vegetables into fairly large chunks, about 1-inch pieces. Even the onion should not be diced. That way, the vegetables will soften without losing their shape while roasting away in the oven.


Cooking spray

4 spray(s), divided

Uncooked onion(s)

2 large, yellow, chopped

Garlic clove(s)

4 medium clove(s), minced

Fresh tomato(es)

4 large, chopped

Uncooked bell pepper(s)

4 item(s), medium, 2 green and 2 red, chopped*

Uncooked zucchini

2 large, chopped


2 medium, stemmed, chopped (no need to peel)


½ cup(s), leaves, fresh, chopped

Fresh oregano

2 Tbsp, leaves, packed

Fresh thyme

2 Tbsp, leaves

Table salt

1 tsp

Black pepper

1 tsp, freshly ground


  1. Position rack in center of oven and preheat oven to 400°F.
  2. Spray a large roasting pan with cooking spray. Add onions and garlic to pan; spray lightly with nonstick spray. Roast for 10 minutes, tossing twice.
  3. Add tomatoes, bell peppers, zucchini, eggplant, basil, oregano, thyme, salt and pepper. Toss well. Bake, tossing occasionally, until vegetables are softened, tomatoes have broken down, and there’s some bubbling liquid in the pan, about 35 minutes. Cool for a few minutes before using or serving.
  4. Serving size: 1 cup