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Home » All posts » Side Dishes

Crock Pot Ratatouille

Updated: Aug 17, 2023 · Published: Aug 30, 2020 by Laura Yautz · This post may contain affiliate links · 2 Comments

Jump to Recipe Print Recipe

Have you been avoiding trying to make ratatouille because it seems like too much work? I've eliminated much of that by using my slow cooker! This easy Crock Pot Ratatouille cooks gently in the slow cooker with only 25 minutes of prep time! It is perfect for your end of summer produce and you won't have to hang out over a hot stove the whole time! Using the slow cooker also allow us to reduce the amount of oil used substantially, making this a lower calorie version of the French classic.

Bowl of ratatouille, with a piece of crusty bread on the side.

Ratatouille - and I'm not talking about the adorable 2007 Disney movie - is a dish of stewed vegetables that originated in France. Ingredients and preparations vary widely, but the stew most often includes some combination of garlic, onions, tomatoes, peppers, eggplant, and zucchini. It's finished off with some kind of herby green (like basil).

Typically, the vegetables are all cooked separately, and then combined toward the end, and cooked slowly so the result is a creamy, smooth consistency. We use the crock pot to cut down on the active cooking time substantially.

Ratatouille can be served on its own, as an entrée, but typically it is a side dish. To make it an entrée, add a can of drained and rinsed chickpeas. As a side dish, it pairs well with some crusty bread - or Olive Oil Buckwheat Biscuits for a gluten free option.

Jump to:
  • Ingredients
  • Instructions
  • Substitutions
  • Variations
  • Equipment
  • Storage
  • Top tip
  • FAQ
  • Related
  • Pairing
  • 📖 Recipe

Ingredients

We are using mostly traditional ingredients for our healthy ratatouille recipe.

  • Olive Oil
  • Garlic Cloves
  • Onion
  • Yellow Bell Pepper
  • No Added Salt Tomato Paste
  • Tomatoes
  • Dried Thyme
  • Herbs de Provence
  • Green Olives
  • Eggplant
  • Zucchini
  • Yellow Squash
  • Fresh Basil

See recipe card for quantities.

Instructions

I love when things are easy. I'm not into spending hours over a hot stove - especially in the throes of summer. In this slow cooker ratatouille version, all the vegetables cook down to a perfectly soft, creamy consistency, and I can spend my time doing something else! The sauce is made on the stove to allow for depth of flavor, and it only takes about 15 minutes - it can even be made up to 5 days in advance!

Sautéing the onions.

Sauté the onions and garlic until translucent.

Added chopped peppers to the sauteed onions.

Add the pepper, and continue to cook until soft.

Sautéed onions and peppers.

Stir in the tomato paste, and cook for another minute.

Added the diced tomatoes to the pan.

Pour in the diced tomatoes.

Reducing the sauce.

Add the herbs and olives (if using).

Reduced sauce, ready for the slow cooker.

Simmer 5-10 minutes.

Chopped eggplant, zucchini, and yellow squash in the slow cooker.

Dice the eggplant, zucchini, and squash, and add to the slow cooker.

Pour the tomato sauce over the chopped vegetables.

Pour the sauce into the slow cooker, and stir to combine.

Ratatouille done cooking, in the slow cooker.

Cook for 4-6 hours, until all the vegetables are cooked down, and very soft.

Finished ratatouille, in the crock pot, with basil chiffonade on top.

Finish with some basil chiffonade.

Hint: It's easy to dice the tomatoes (and neater, too), using a food processor. Just add your tomatoes to the bowl and blitz it a few times until they're broken down. You really can't process them too long, either, since you're making a sauce with them!

Tomatoes in the food processor.

Use any variety of tomatoes you have!

Diced tomatoes from fresh, in a food processor.

Process them until you reach a consistency you like.

Substitutions

Just a few substitutions you may wish to try!

  • Canned tomatoes - use no added salt varieties. You will need a 28 oz can, and a 15 oz can for this recipe.
  • More zucchini - omit the yellow squash and use another zucchini
  • Without eggplant - use extra zucchini and/or yellow squash to make ratatouille without eggplant

Note: I do not recommend using dried basil in place of the fresh. While certainly possible, it really doesn't compare in flavor. If you absolutely must use dried, add 1 tablespoon into the sauce with the rest of the herbs, instead of at the end.

Variations

This crock pot ratatouille is already gluten free, low fat, low sodium, vegan, and overall healthy. It is a vegetable side dish after all! But here are some variations you may enjoy.

  • Make it an entrée - add a can or two of chickpeas (no added salt), or any other bean you like
  • Spicy - add 2 teaspoons, or more to taste, crushed red pepper flakes
  • Less salt - while already really low sodium, if you omit the olives it will be even lower

Equipment

You'll need some basic equipment for slow cooker ratatouille:

  • 6 quart slow cooker (or close)
  • Cutting board and chef knife
  • Large skillet
  • Food processor (optional)
  • Measuring spoons

Storage

This healthy ratatouille recipe will store well in the refrigerator for up to 5 days.

Can be frozen for up to 6 months.

Scooping a spoonful of ratatouille onto a piece of crusty bread from a bowl.

Top tip

Chopping all those veggies can take a while, especially if you aren't a pro with a chef knife. For this recipe, all the chopping can be done a day ahead. Combine the sauce with the vegetables and refrigerate. Then you can toss everything in your slow cooker on your way out the door in the morning!

To make chopping faster, I recommend investing in an all-in-one vegetable chopper with a vegetable dicing blade.

FAQ

Is ratatouille healthy?

Yes! Most ratatouille recipes are quite healthy. Traditionally made versions are sometimes high in fat, due to the oils used in cooking, but overall healthy.

What pairs well with ratatouille?

There are so many options for pairings with ratatouille! Here are some of our favorites:
Crusty, rustic bread
Over whole grain pasta
Over creamy polenta
With brown or wild rice pilaf
As a dip for whole grain crackers (dice all ingredients very small before cooking)
With poached white fish
In a pita as a sandwich

Related

Looking for more healthy zucchini recipes? Try these:

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    Zucchini Lasagna Rolls (dairy free)
  • Zucchini Pudding
    Cinnamon Cardamom Zucchini Pudding

Pairing

These are my favorite dishes to serve with Crock Pot Ratatouille:

  • A pan of 6 baked stuffed bell peppers.
    Lentil Stuffed Peppers
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    Buckwheat Biscuits
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    Cherry Galette with Olive Oil Crust

📖 Recipe

Two bowls of ratatouille with crusty bread on the side.

Crock Pot Ratatouille

Laura Yautz
This easy ratatouille cooks gently in the slow cooker with only 25 minutes of prep time! It is perfect for your end of summer produce!
5 from 1 vote
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Prep Time 25 minutes mins
Cook Time 4 hours hrs
Total Time 4 hours hrs 25 minutes mins
Course Side Dish, vegetable
Cuisine French
Servings 6
Calories 102 kcal

Equipment

  • Slow Cooker

Ingredients
  

For the sauce:

  • 1 tablespoon Olive Oil
  • 4 Garlic Cloves, minced
  • 1 medium Onion, diced
  • 1 Yellow Pepper, chopped
  • 1 tablespoon No Added Salt Tomato Paste
  • 1 ½ - 2 lbs Tomatoes, diced or crushed
  • 1 teaspoon dried Thyme (or 2 teaspoon fresh thyme)
  • 1 teaspoon Herbs de Provence
  • optional ¼ cup minced Green Olives

For the Ratatouille:

  • 1 large Eggplant (about 1 lb)
  • 1 medium Zucchini (about ½ lb)
  • 1 medium Yellow Squash, or another zucchini (about ½ lb)
  • ¼ cup thinly sliced Basil

Instructions
 

  • Make the sauce by heating the olive oil in a large skillet over medium heat. Saute the garlic and onions until the onions are translucent.
  • Add the yellow peppers and continue to saute until soft.
  • Stir in the tomato paste, and cook for a minute before adding the diced tomatoes, herbs, and olives if using.
  • Reduce the heat to low, and simmer for about 5-10 minutes, until the sauce thickens.
  • While the sauce is cooking, dice the eggplant, zucchini, and squash into cubes about ½ inch, and add them all to your slow cooker.
  • When the sauce is thick, pour over the vegetables in the slow cooker, and stir to combine.
  • Slow cook on high for 4 hours, or low for 6 hours. If you like your ratatouille less soupy, remove the lid of the slow cooker in the last 30 minutes of cooking to allow evaporation.
  • Just before serving, stir in ¼ cup of thinly sliced fresh basil, or more if desired.
  • Serve with crusty bread, or on whole grain pasta or polenta.

Nutrition

Calories: 102kcal (5%)Carbohydrates: 17.1g (6%)Protein: 3.5g (7%)Fat: 3.6g (6%)Saturated Fat: 0.6g (4%)Polyunsaturated Fat: 0.5gMonounsaturated Fat: 2.2gSodium: 57.2mg (2%)Potassium: 780.8mg (22%)Fiber: 5.7g (24%)Sugar: 9g (10%)Vitamin A: 64.3IU (1%)Vitamin C: 89.1mg (108%)Calcium: 49.5mg (5%)Iron: 1.3mg (7%)

*Nutrition information is an estimate, and will change based on the brand and individual ingredients and amounts you use. This is provided for your convenience only.

Keyword eggplant stew, healthy zucchini recipes, slow cooker vegetables
Tried this recipe?Let us know how it was!
Bowl of ratatouille with a piece of crusty bread on the side. Text overlay: Easy ratatouille in the slow cooker.

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Comments

    5 from 1 vote (1 rating without comment)

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    Recipe Rating




  1. Nilda Bergmann says

    June 24, 2023 at 6:17 pm

    I did make this in my crock pot. It took more time to prepare the vegetables then it took to cook. But is oh so good and worth the preparation time. . . . and to boot, for me and my husband it gave us a few meals. An enjoyable meal

    Reply
    • Laura Yautz says

      June 26, 2023 at 8:47 am

      So glad you and your husband enjoyed the ratatouille, Nilda! Thanks for your comments!

      Reply
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Hi, I'm Laura!

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