Zucchini Ratatouille – A Vegetarian Recipe

Zucchini, sweet bell pepper, onion, carrot, and cherry tomato ratatouille is a true Provençal classic that celebrates the bounty of a summer garden. Originally a humble dish made by peasants in Nice who slowly simmered seasonal vegetables in olive oil, today it stands as a worldwide symbol of French gastronomy. The special charm of this recipe lies in the fine, uniform dice, which allows every single ingredient to soak up the juices of its neighbors while retaining its own distinct character. The aroma of basil, mint, and thyme will instantly transport you to the sun-drenched terraces of the Mediterranean, turning an ordinary lunch into a genuine feast of flavors.

Preparation: 15 minutes
Cooking: 25 minutes
Quantity: 4 Servings
Per serving
Calories: 120 kcal
Proteins: 3 g
Fats: 4.5 g
Carbohydrates: 16.5 g

Ingredients

  • 600 g (1.3 lbs) zucchini
  • 200 g (7 oz) carrots
  • 200 g (7 oz) red bell pepper
  • 100 g (3.5 oz) onion
  • 200 g (7 oz) cherry tomatoes
  • 40 g (1.4 oz) fresh parsley and celery leaves
  • fresh green basil and mint
  • 1 clove garlic
  • 20 g (1.5 tbsp) olive oil
  • salt, sugar, and black pepper to taste

How to Make Zucchini Ratatouille

Peel the zucchini and remove the seeds. Dice the peeled zucchini into 1-centimeter (1/2-inch) cubes. A uniform, fine dice is the best way to make a delicious and beautiful ratatouille! Pour olive oil into a large skillet, heat it slightly, and add the diced zucchini. You can use cold-pressed oil in this recipe, as we aren’t cooking at high temperatures, so the oil won’t burn. Cold-pressed oil usually has a slight bitterness, which pairs perfectly with this vegetable bouquet.

Diced zucchini cooking in a skillet with olive oil.

First, sauté the neatly diced zucchini in high-quality olive oil.

Cut the sweet bell pepper, remove the stem and seeds, wash, and dice the flesh to the same size as the zucchini. Place the diced pepper in the skillet next to the zucchini.

Diced red bell pepper added to zucchini in a skillet.

Add the sweet bell pepper to the zucchini. Try to cut all vegetables uniformly for an aesthetic look.

Finely chop the onion. In this recipe, we use young spring onions—both the white bulbs and the pale stems, leaving out the green tops. Shallots are popular in France, as they are sweeter than regular onions; leeks can also add great variety to this dish.

Finely chopped white onion added to the vegetables in the pan.

Add the finely chopped onion. It will give our ragout the necessary sweetness and depth of flavor.

Thinly slice the carrot and add it next to the rest of the vegetables. Carrots take longer to cook, so make sure to slice them as thinly as possible.

Thinly sliced carrots added to the vegetable mix in the skillet.

Slice the carrots as thinly as possible so they finish cooking at the same time as the rest of the vegetables.

Toss the cherry tomatoes into the skillet. Season with salt to taste, add 1 teaspoon of sugar, and one minced garlic clove. If using regular tomatoes, you will need to peel them, remove the seeds, and dice the flesh.

Whole cherry tomatoes added to the skillet with diced vegetables.

Cherry tomatoes will add juiciness. Don't forget the garlic and a pinch of sugar for flavor balance.

Stir the vegetables with the oil and cook uncovered over medium heat for about 20 minutes.

Vegetable ratatouille simmering in an open skillet.

Cook the vegetables over medium heat, allowing them to soak up the oil and each other's aromas.

Gather your herb bouquet. Finely chop the parsley and celery leaves, and add a few sprigs of peppermint and green basil. Season the vegetables with the fresh herbs, stir well, and heat for just one more minute. Herbes de Provence are the hallmark of a French ragout; use a ready-made dried herb blend if you don’t have fresh ones. Aside from basil and mint, rosemary, thyme, and fennel will work beautifully.

Freshly chopped herbs added to the cooked vegetables in the skillet.

At the very end, add the finely chopped herbs—they create that signature Provençal spirit.

Remove the skillet from the heat, and our zucchini ratatouille is ready!

Cooked vegetable ratatouille in a skillet mixed with fresh herbs.

Our ratatouille is ready! The vegetables have softened but kept their shape and vibrant colors.

Ratatouille can be enjoyed both hot and cold. You can even use this delicious vegetable ragout to fill tartlets, making it an excellent individual cold appetizer for a vegan party.

Zucchini ratatouille served in an elegant ceramic plate.

Serve the ratatouille in beautiful dishware. It is equally delicious as a main course or a side.

Zucchini ratatouille is a versatile dish for anyone following a plant-based diet or fasting, as it contains absolutely no animal products. For the best results, use high-quality cold-pressed olive oil: its slight bitterness perfectly balances the sweetness of the carrots and bell peppers. If you want to experiment, try adding a little eggplant or olives to the ragout to give the dish a heartier texture and punchy Mediterranean notes. This vegetable ragout holds its flavor beautifully when chilled, becoming even more rich and intense the next day. Serve it as a standalone main with a crusty baguette, use it as a side dish for fish, or spoon it into shortcrust tartlets for an original party appetizer. Store any leftovers in an airtight container in the refrigerator for no more than two to three days, ensuring the vegetables keep their appetizing shape and the fresh aroma of the herbs.