Ratatouille with Eggplant, Zucchini and Peppers
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Brown the eggplant and zucchini, then the onion and peppers, then fold it all back together with tomatoes and thyme. It's a patient dish for a full table, and the kitchen smells of olive oil the whole way through.
The short version
Brown the eggplant and zucchini in olive oil, then the onion and peppers, add garlic, tomatoes and thyme, and fold the first batch back in to simmer 25 minutes. Finish with basil and a splash of vinegar.
What makes ours better
what we fixed so you don’t have to
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Brown the vegetables in batches. Crowded vegetables steam. In batches, the eggplant and zucchini pick up golden edges, and the stew holds its shape instead of turning into a puree.
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Add tomato paste to the onions. A spoonful cooked until brick red gives the stew a deep, savory tomato backbone, so it tastes slow-cooked after a short simmer.
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Finish with basil and a splash of vinegar. Long cooking dulls everything. Fresh basil and a teaspoon of red wine vinegar stirred in at the end bring it back to life.
What you need
the usual suspects
- Extra-virgin olive oil⅓ cup
- Eggplant1 pound
- Zucchini1 pound
- Red bell peppers2 large
- Tomato paste1 tablespoon
- Diced tomatoes1 can
- Fresh thyme4 sprigs
- Chopped fresh basil¼ cup
yes, all of the butter
Steps
nobody opens the oven door. looking at you, Dad.
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Brown the eggplant
Heat 2 tablespoons of the oil in a large Dutch oven or deep skillet over medium-high heat until it shimmers. Add the eggplant and ½ teaspoon of the salt. Cook, stirring every minute or so, until golden on several sides and starting to soften, 7 to 9 minutes. Transfer to a large plate.
Eggplant drinks oil. If the pan looks dry, add a spoonful rather than letting it scorch.
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Brown the zucchini
Add another tablespoon of oil to the pan. Add the zucchini and the remaining ½ teaspoon of salt and cook, stirring occasionally, until the edges are golden but the pieces are still firm, 4 to 5 minutes. Put it on the plate with the eggplant.
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Cook the onion and peppers
Lower the heat to medium and add the remaining 2 tablespoons of oil. Add the onion and peppers and cook, stirring, until they soften and the onion turns translucent, 8 to 10 minutes. Stir in the garlic and tomato paste and cook 2 minutes more, until the paste darkens to brick red.
About 10 min. Cook mode has a timer for this step.
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Add the tomatoes
Pour in the diced tomatoes and their juice, scraping up any browned bits. Add the thyme, bay leaf and pepper. Bring to a simmer, cover, reduce the heat to low and cook 10 minutes.
About 10 min. Cook mode has a timer for this step.
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Combine and simmer
Return the eggplant and zucchini, with any juices on the plate, to the pot. Stir gently, cover, and simmer over low heat until everything is tender but still holds its shape, about 25 minutes. Stir once or twice. If it looks watery, take off the lid for the last 5 minutes.
About 25 min. Cook mode has a timer for this step.
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Finish with basil and vinegar
Remove the bay leaf and thyme stems. Stir in the basil, the vinegar and the olives if using. Taste, and add salt until the vegetables taste sweet and bright, not flat. Serve warm, at room temperature or cold, with a trickle of olive oil and more basil on top.
Good to know
the stuff I’d tell you over the phone
- The vegetables should be cut about the same size, 1 inch, so they finish together. Don't cut them smaller than that or they'll fall apart.
- Fresh summer tomatoes work in place of canned. Use 1½ pounds, peeled and chopped, and add 5 minutes to the simmer.
- Serve it as a side with roast chicken or fish, over polenta, rice or pasta, or with a poached egg and bread for dinner.
- It doubles well in a large pot. Brown the vegetables in more batches rather than all at once.
- Storage. Fridge, covered, 5 days. Freezer, 3 months. Reheat gently over medium-low heat. It tastes better the next day.
Questions, answered
the questions my cousins text me
Do I have to cook the vegetables separately for ratatouille?
You don't have to, but it's worth it. Cooking everything together in one pot steams the vegetables and gives you a soft, uniform stew. Browning them in batches takes about 10 extra minutes and keeps the textures distinct.
Should I salt and drain the eggplant first?
Modern eggplant is rarely bitter, so skip it. Salting while it browns is enough.
Can I make ratatouille ahead?
Yes, and you should. The flavors blend overnight. Reheat on the stove over low heat, and stir in fresh basil right before serving.
Can I bake ratatouille instead?
Yes. Toss the vegetables with oil and roast them at 425°F on two sheet pans for 25 to 30 minutes, then fold them into the tomato-onion base on the stove.
Is ratatouille a main or a side?
Either. Serve it as a side with meat or fish, or make it a vegetarian main with crusty bread, rice, polenta or eggs.
Why is my ratatouille watery?
Too much tomato juice, or a lid left on the whole time. Simmer uncovered for the last 5 to 10 minutes until the liquid thickens into a glossy sauce.
From the table
Made it? Tell me everything. Especially if somebody said it was better than their mother’s. I’ll keep your secret.
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Published October 29, 2026.