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a bowl of instant pot ratatouille vegetable stew.
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5 from 3 votes

Instant Pot Ratatouille (Vegetable Stew)

Instant pot ratatouille! This is a classic French vegetable stew made in a pressure cooker. This pressure cooker vegetarian recipe is packed with summer vegetables that your body would love. This stew is typically on the stove top but why wait hours for it to simmer when you can have it on your dinner table in 30 minutes. Serve this nutritious stew with crusty homemade bread, pasta or rice.
Prep Time10 mins
Cook Time3 mins
Total Time13 mins
Course: Side Dish
Cuisine: French
Keyword: instant pot ratatouille, ratatouille
Servings: 6
Calories: 107kcal
Author: Ajoke


  • Instant Pot


  • 1 large eggplant also known as aubergine chopped
  • 2 Zucchini chopped (courgette in the UK or squash)
  • 1 lb fresh Tomatoes chopped substitute with canned chopped tomatoes
  • 2 tablespoons olive oil
  • 1 cup onions chopped
  • 1 cup red bell peppers chopped
  • 4 garlic cloves
  • Salt to taste
  • Freshly ground black pepper
  • 1 tablespoon tomato puree
  • 1 teaspoon dried basil
  • 1 teaspoon dried thyme
  • ½ cup vegetable stock


  • Cut the veggies into cubes and set aside.
  • Turn on your instant pot and select saute (more settings), add olive oil and leave until hot.
  • Add chopped onions and saute until soft (this should take about 3 minutes) add chopped garlic and continue to stir for another minute.
  • Next, add in the chopped zucchini, eggplant and red bell pepper and continue to saute for another 2 minutes. Followed by the tomato puree, basil, thyme, salt and the chopped tomatoes. Mix to combine for another minute.
  • Finally, pour the vegetable stock over it, stir to combine making sure nothing sticks to the bottom of the pan and if there is, make sure to scrape it off to avoid getting a BURN notice.
  • Secure the lid of the instant pot and turn the valve to the seal position. Select the manual or pressure cook button then cook on high pressure for 3 minutes.
  • Once the cycle is completed, carefully do a quick release. Stir to combine, if there is too much liquid in the ratatouille, turn on the saute function and stir until the liquid reduces in size.
  • Serve as desired and enjoy.


Substitute basil and thyme for mixed herbs or Italian seasoning


Calories: 107kcal | Carbohydrates: 14g | Protein: 3g | Fat: 5g | Saturated Fat: 1g | Sodium: 93mg | Potassium: 628mg | Fiber: 5g | Sugar: 9g | Vitamin A: 1611IU | Vitamin C: 58mg | Calcium: 42mg | Iron: 1mg