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–+ servings
Instant Pot ratatouille dish on a white plate with tofu
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3.8 from 5 votes

Instant Pot Vegan Ratatouille

This simple, easy ratatouille recipe is ready in less than 30 minutes thanks to pressure cooking in an Instant Pot. For less soupy results, add 5-minutes of sautéing at the end with the Instant Pot lid off.
Prep Time5 mins
Cook Time10 mins
Total Time15 mins
Course: Brunch, Side Dish
Cuisine: French
Keyword: 10 ingredients or less, 5-minute recipe, batch-cooking, comfort, freezer-friendly, gluten-free, summer, vegan, vegetarian
Servings: 6 people
Calories: 122kcal
Author: Anna Rider
Cost: $10

Equipment

  • Instant Pot
  • Knife
  • Chopping Board

Ingredients

  • 3 tablespoons Oil Any neutral cooking oil is OK

Ratatouille Vegetables

  • 1 Eggplant The stout dark purple eggplant or the long, skinny Chinese eggplant both work.
  • 2 lb. Zucchini Also known as courgette
  • 1 can Tomatoes 28 oz. / 794 g can of whole peeled tomatoes

Aromatics

  • 1 Onion Sliced
  • 4 teaspoon Garlic Powder
  • 4 teaspoon Herbes de Provence Blend your own following instructions in the post. Or simply add dried thyme, oregano, and/or rosemary.
  • Salt To taste
  • Pepper To taste
US Customary - Metric

Instructions

Prepare the vegetables

  • Slice all the vegetables into flat discs. You can slice the eggplant and zucchini horizontally. 
  • This is what the sliced eggplant should look like.
    An overhead view of a chopping board to show sliced eggplant
  • This is what the sliced zucchini should look like.
    An overhead view of a chopping board to show sliced zucchini

Prepare the aromatics

  • Thinly slice the onion. This is what the sliced onion should look like.
    PIcture of Alex's hand slicing onions on a chopping board

Cooking in the Instant Pot

  • Turn the Instant Pot on sauté mode.
    Control panel for instant pot duo 6-quart version 2 with annotations for turning on sauté
  • Pour the oil into the inner pot. Allow the onion to heat up.
    Instant Pot on sauté mode heating up hot oil for ratatouille recipe
  • Put the sliced onions into the hot oil. Sauté for 1 minute.
    Instant Pot on sauté mode heating sliced onions for ratatouille recipe
  • Add the sliced eggplant in the inner pot. Stir the eggplant to allow the slices to get coated in the oil. Sauté for 2 minutes.
    Instant Pot on sauté mode heating sliced onions and eggplant for ratatouille recipe
  • While the eggplant is sautéing, add the sliced zucchini on top of the eggplant.
    Instant Pot on sauté mode heating sliced zucchini for ratatouille recipe
  • Add the garlic powder, herbs, salt, and pepper. Stir the mixture.
    Instant Pot on sauté mode heating sliced zucchini and dried herbs for ratatouille recipe
  • Drain the whole peeled tomatoes from the can and put it on top of the ingredients in the inner pot.
    Instant Pot on sauté mode heating sliced zucchini and canned tomatoes for ratatouille recipe
  • Stir the ingredients in the inner pot. You won't be able to get everything evenly distributed. That's OK. Just do your best.
    Instant Pot on sauté mode with all ingredients for ratatouille recipe
  • 1. Turn off the sauté mode by pushing the Keep Warm / Cancel button.
    2. Turn on the pressure cooking mode by pushing the Manual button.
    3. Check the pressure cooking mode is set to High Pressure. If it is not, turn on the high pressure mode by pushing the Pressure button.
    Control panel for instant pot duo 6-quart version 2 with annotations for turning on pressure cooking mode
  • Set the timer to 5 minutes by pushing the plus + and minus - buttons on the control panel until you get to 5.
    Front view of instant pot duo 6-quart version 2 showing 5 on display panel
  • Once you've correctly configured the Instant Pot, wait 10 seconds for the settings to lock. You will see the control panel display On when the Instant Pot is starting to pressurize.
    Front view of instant pot duo 6-quart version 2 showing ON on display panel
  • When the Instant Pot is ready for pressure cooking, it begins the count down. Your ratatouille is cooking under pressure now. Hooray!
    Front view of instant pot duo 6-quart version 2 showing 5 on display panel
  • Once the pressure cooking is done, turn off the Instant Pot by pushing the Keep Warm / Cancel button. Very carefully turn the Steam Release Valve to depressurize the Instant Pot. Once the Float Valve drops to indicate the Instant Pot is no longer pressurized, remove the lid.
  • Turn on the sauté mode again. This step is optional. You can skip it if you're short on time or don't mind soupy ratatouille.
    Control panel for instant pot duo 6-quart version 2 with annotations for turning on sauté
  • If you choose to sauté to finish the ratatouille, allow the ratatouille to sauté for 5 minutes. Then it is ready to eat or freeze for later.
    Instant Pot ratatouille with lid off on sauté mode
  • Enjoy your ratatouille!
    2 plates of instant pot ratatouille dish with pan-fried tofu on white table cloth and purple flowers

Nutrition

Serving: 0g | Calories: 122kcal | Carbohydrates: 13g | Protein: 3g | Fat: 8g | Saturated Fat: 1g | Sodium: 16mg | Potassium: 620mg | Fiber: 5g | Sugar: 7g | Vitamin A: 345IU | Vitamin C: 30.4mg | Calcium: 48mg | Iron: 1.7mg