French-Style Herb Butter Ratatouille

By AislePrompt Editorial · Published 2026-06-08 · Updated 2026-06-08

A colorful medley of sautéed vegetables simmered with fragrant herbs and finished with a rich herb butter, embodying classic French flavors. This French-inspired vegetarian recipe, ready in about 50 minutes, pairs extra virgin olive oil, yellow onion, garlic cloves 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.

Ingredients

• 3 tbsp extra virgin olive oil
• 1 medium, diced yellow onion
• 4, minced garlic cloves
• 1 medium, diced into 1-inch cubes eggplant
• 2 medium, diced into 1-inch cubes zucchini
• 1 large, diced red bell pepper
• 3 large, chopped tomatoes
• 1 tbsp fresh thyme leaves
• 1/4 cup chopped fresh basil leaves
• 2 tbsp unsalted butter
• 1 tsp kosher salt
• 1/2 tsp black pepper
• 2 tbsp chopped for garnish fresh parsley

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Instructions

1. Step 1: Heat 3 tbsp extra virgin olive oil in a large skillet over medium heat. Add 1 medium diced yellow onion and sauté for 5 minutes until softened and translucent.
2. Step 2: Add 4 minced garlic cloves to the skillet and cook for 1 minute until fragrant, stirring frequently to avoid burning.
3. Step 3: Stir in 1 medium diced eggplant, 2 medium diced zucchinis, and 1 large diced red bell pepper. Cook for 8-10 minutes, stirring occasionally, until the vegetables are tender and starting to brown on the edges.
4. Step 4: Add 3 large chopped tomatoes, 1 tbsp fresh thyme leaves, 1 tsp kosher salt, and 1/2 tsp black pepper. Lower heat to medium-low and simmer for 15 minutes until the mixture thickens and flavors meld.
5. Step 5: Remove skillet from heat and stir in 2 tbsp unsalted butter and 1/4 cup chopped fresh basil leaves until the butter melts and evenly coats the vegetables.
6. Step 6: Transfer ratatouille to a serving dish and garnish with 2 tbsp chopped fresh parsley. Serve warm with crusty bread or as a side dish.