Ratatouille

A familiar comparison

Ratatouille belongs to a wider Mediterranean family of slow-simmered summer vegetables that includes Italian caponata, Spanish pisto and Turkish türlü — all built on broadly the same eggplant-pepper-tomato base, with each region’s version distinguished mainly by technique (separate versus combined cooking) and by a handful of local seasonings rather than by fundamentally different ingredients.

History

Ratatouille is a dish of summer vegetables (eggplant, zucchini, pepper, tomato, onion) simmered in olive oil, traditionally associated with the city of Nice and its surrounding countryside, where farmers are thought to have put this economical dish together from the abundant vegetables of the garden at harvest time. The word “ratatouille” is believed to come from the Occitan verb “touiller,” meaning to stir or toss vigorously, referring to the motion of tossing the vegetables together during cooking.

A long-standing culinary debate pits two schools of thought against each other: one that cooks all the vegetables together in the same pot from the start, and another, more rigorous and defended by many Provençal chefs, that insists on cooking each vegetable separately before combining them at the end, to preserve the individual texture and flavor of each rather than letting them collapse into a uniform mush. Ratatouille gained unexpected worldwide fame in 2007 thanks to the animated film of the same name, which made it a recognized dish well beyond France.

Ingredients — for 6 people

• 2 eggplants, 3 zucchini
• 2 peppers (red and yellow), 4 tomatoes
• 2 onions, 3 garlic cloves
• Thyme, bay leaf, olive oil

Step-by-step Niçoise ratatouille recipe

1. Cut each vegetable separately into even-sized cubes.
2. Sauté each vegetable separately in olive oil, starting with the peppers, then the eggplant, then the zucchini, setting each aside once colored.
3. Sweat the onion and garlic in the same pan until translucent.
4. Add the chopped tomatoes to the onion and simmer a few minutes to form a sauce base.
5. Combine all the pre-cooked vegetables into this tomato sauce, with the thyme and bay leaf.
6. Simmer covered over low heat for another 20 minutes, stirring gently so as not to crush the vegetables.

Cooking method

Technique: each vegetable cooked separately before being combined at the end, to preserve individual texture rather than simmering everything together from the start.

Traditional equipment: several skillets, or a single one used in succession, a large pot for the final combination.

Benchmarks: never combine all the raw vegetables in the same pot from the start; each has a different cooking time that must be respected separately.

Nutrition, per serving

Calculated from the raw ingredient quantities above, divided by six servings.

Notable amounts: fiber is high relative to the calorie count, at roughly 6 g per serving, from the combination of eggplant, zucchini, pepper and tomato. Fat is almost entirely from the olive oil and is overwhelmingly unsaturated — only 1 g of saturated fat per serving.

Economic context

Ratatouille was traditionally a way to use up an abundant summer vegetable garden rather than a dish built around costly ingredients, which keeps it inexpensive to reproduce well beyond Nice and Provence, its region of origin.

Source: World Bank / FAO, Food Prices for Nutrition database (Cost and Affordability of a Healthy Diet) v4.0, 2024 data, CC BY 4.0, DOI 10.57966/41AN-KY81. Retrieved 29 July 2026. This figure describes the cost of a healthy diet in France generally — it is not a costing of this specific recipe.

Who this dish suits

What about you?

In your opinion, where’s the best place or restaurant to enjoy great ratatouille?

Also worth trying