Easy Sheet-Pan Ratatouille with Fresh Summer Herbs

Alice Ross
Alice Ross
Published: April 22, 2026
Tags: gluten-free, vegan, Vegetarian, Low-Carb, roasted vegetables, French Cuisine

Sheet-Pan Ratatouille

A vibrant, roasted vegetable medley that's healthy, easy to clean up, and packed with Provencal flavor.

Prep Time:15 minCook Time:35 minTotal Time:50 minServings:4Difficulty:Easy

There is something truly magical about the way late-summer vegetables transform when they hit a hot oven. While a traditional ratatouille requires standing over a stove and stirring a heavy pot, this sheet-pan version lets the oven do the heavy lifting. By roasting the eggplant, zucchini, and peppers at a high temperature, we achieve beautiful caramelized edges and a concentrated depth of flavor that a simmered stew simply can't match. It is a celebration of seasonal produce that brings a taste of the French countryside to your table with minimal effort.

I love serving this dish as a light main course alongside a crusty baguette and a creamy dollop of goat cheese, but it also shines as a vibrant side to grilled chicken or fish. The beauty of this recipe lies in its simplicity and the final aromatic flourish of fresh basil and a bright squeeze of lemon. Whether you are meal prepping for the week or looking for a stress-free dinner solution, this roasted vegetable medley is a healthy, gluten-free, and vegan-friendly option that tastes even better as the flavors meld overnight.

Nutrition (per serving)

Calories:195 kcal
Protein:4 g
Carbs:18 g
Fat:14 g

Directions

  1. 1
    Parchment-lined sheet pan prepared with fresh ratatouille vegetables nearby.

    Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper for easy cleanup.

  2. 2
    Cubed eggplant, squash, peppers, and red onion spread on a sheet pan.

    Place the cubed eggplant, zucchini, yellow squash, bell peppers, and red onion on the baking sheet.

  3. 3
    Olive oil, garlic, herbs, salt, and pepper whisked together in a small bowl.

    In a small bowl, whisk together the olive oil, minced garlic, herbes de Provence, salt, and pepper.

  4. 4
    Ratatouille vegetables coated with herb oil and spread in a single layer.

    Drizzle the oil mixture over the vegetables and toss thoroughly with your hands or a spatula to ensure every piece is evenly coated. Spread the vegetables out into a single layer.

  5. 5
    Partly roasted vegetables tossed with fresh cherry tomatoes on the hot sheet pan.

    Roast for 20 minutes. Remove the pan from the oven, add the cherry tomatoes, and give the vegetables a gentle toss.

  6. 6
    Tender roasted ratatouille vegetables with blistered tomatoes and charred edges.

    Return the pan to the oven and roast for another 15 minutes, or until the vegetables are tender and charred around the edges.

  7. 7
    Finished sheet-pan ratatouille drizzled with lemon juice and garnished with fresh basil.

    Remove from the oven and immediately drizzle with lemon juice. Garnish with fresh torn basil leaves before serving warm or at room temperature.

Ingredients

  • Eggplant, cut into 1-inch cubes:1 lb
  • Zucchini, sliced into half-moons:2 medium
  • Yellow squash, sliced into half-moons:1 medium
  • Red bell pepper, chopped into 1-inch pieces:1 large
  • Yellow bell pepper, chopped into 1-inch pieces:1 large
  • Red onion, cut into wedges:1 medium
  • Cherry tomatoes:1 cup
  • Garlic, minced:4 cloves
  • Extra-virgin olive oil:1/4 cup
  • Herbes de Provence:1 tbsp
  • Kosher salt:1 tsp
  • Black pepper:1/2 tsp
  • Fresh basil leaves, torn:1/4 cup
  • Lemon juice:1 tbsp

Tips & Notes

  • Try to cut the vegetables into similar sizes so they roast at the same rate; eggplant takes the longest, so don't cut those pieces too large.
  • Don't overcrowd the pan. If the vegetables are piled on top of each other, they will steam instead of roast. Use two pans if necessary.
  • Leftovers are incredible the next morning topped with a fried egg.