Authentic Provençal Tomato Ratatouille

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A slow-simmered vegetable medley with true French technique, layered with fresh herbs. This mediterranean-inspired vegetarian ready in about 58 minutes pairs medium, diced 1/2-inch zucchini, medium, diced 1/2-inch eggplant, medium, finely diced yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 180 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 3.7 (13 ratings) Prep: 25 min Cook: 33 min Serves 4 Mediterranean cuisine 180 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat 2 tbsp olive oil in a large Dutch oven over medium heat. Add 1/2 medium finely diced yellow onion and cook for 5 minutes until translucent and golden, stirring occasionally.
  2. Step 2: Add 1 medium diced zucchini, 1 medium diced eggplant, and 2 minced garlic cloves. Cook for 8 minutes, stirring occasionally, until vegetables begin to soften but retain shape.
  3. Step 3: Stir in 2 medium diced ripe tomatoes, 1 tbsp chopped fresh thyme, 1/4 tsp salt, and 1/8 tsp black pepper. Reduce heat to low, cover, and simmer for 25 minutes until vegetables are tender and flavors meld, stirring once halfway through.
  4. Step 4: Remove lid, stir in 1/4 cup chopped fresh basil, and cook uncovered for 2 minutes until basil wilts. Adjust seasoning if needed.

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Frequently asked questions

How long does Authentic Provençal Tomato Ratatouille take to make?

Total time is about 58 minutes (25 min prep + 33 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Authentic Provençal Tomato Ratatouille?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep medium, diced ripe tomatoes from drying out.

Can I substitute ingredients in Authentic Provençal Tomato Ratatouille?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Authentic Provençal Tomato Ratatouille for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Authentic Provençal Tomato Ratatouille?

Mediterranean vegetarian like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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