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Easy Skillet Ratatouille Recipe

This Easy Skillet Ratatouille recipe is a quick and simple way to prepare ratatouille without baking or using a mandoline slicer. It makes a delicious and healthy side dish that’s loaded with summer vegetables.

Easy Skillet Ratatouille in a cast iron skillet on a wooden tables

For some inexplicable reason, I am still surprised to find myself surrounded by zucchini every summer.

“Where’d all this darn zucchini come from?” I mutter under my breath (as if I didn’t see this coming). “I have zucchini coming out the ying-yang!”

Every. Summer.

Then winter comes and I forget about zucchini, only to be shocked the following year when the overabundance of green squash returns.

Every. Summer.

I call it Amnesiatic Zucchini Syndrome (AZS). One of the only antidotes for AZS is preparing this Easy Skillet Ratatouille.

Not only is this one-pan ratatouille a great way to use up zucchini, but it also incorporates all the other summer veggies that I usually have on hand: eggplant, yellow squash, tomatoes, and peppers.

It’s fresh. It’s clean. It’s oh so tasty.

Ingredients

For this recipe you’ll need:

  • eggplant: I generally prefer to use Chinese eggplant for this recipe because it has tender skin and fewer seeds which makes it ideal for skillet cooking. You can use standard eggplant, I would suggest peeling it before dicing.
  • zucchini
  • yellow squash
  • yellow onion
  • red bell pepper
  • Roma tomatoes: I love the sweetness Roma aka plum tomatoes provide, but any ripe tomatoes will work.
  • garlic
  • fresh thyme
  • fresh basil
  • extra virgin olive oil
  • sea salt
  • black pepper
Styled shot of fresh eggplant, zucchini, tomatoes, red bell pepper, onions, garlic, basil, and thyme on a wooden table.

Fresh is best: I can’t overstate this enough–the fresher your veggies are, the better this Easy Skillet Ratatouille is going to taste.

How to Make Skillet Ratatouille

Start by dicing up all the vegetables. You want to try to cut the eggplant, zucchini, and yellow squash into uniformly sized cubes.

In my opinion, this is the hardest part of this recipe. If nothing else, at least it’s a great way to keep your knife skills sharp (pun intended).

Diced squash and eggplant on a wooden cutting board

Heat three tablespoons of olive oil in a large skillet over medium heat. Add the cubed eggplant to the skillet along with a small pinch of salt.

Sauté the eggplant until it is tender, then transfer it to a large bowl.

Close up of eggplant sautéing in a cast iron skillet.

Pour another tablespoon of olive oil into the skillet, then add the zucchini and squash.

Sauté everything for 5-6 minutes until the squash just starts to soften, then transfer it to the bowl with the eggplant.

Overhead shot of zucchini and yellow squash cooking in a cast iron skillet.

Add one last tablespoon of olive oil to the skillet, then add the diced onion and red bell pepper.

Sauté until the onion is translucent, about 5-6 minutes, then add a few minced garlic cloves and cook until fragrant, about 30 seconds.

Sautéing onions, red bell pepper, and garlic in a skillet.

Add about a pound of chopped tomatoes to the skillet along with some fresh thyme and a large pinch of salt.

Cook the tomatoes down until their juices are released, about 8-10 minutes.

Close up of diced tomatoes and thyme in skillet.

Toss the eggplant and squash back into the skillet and cook for a few more minutes until everything is incorporated.

Stir in some fresh basil leaves and season with more sea salt and black pepper to taste before serving.

Image of simmering ratatouille in a cast iron skillet.

Serving Suggestions

This ratatouille makes a great base or compliment to a variety of meals.

A few suggestions are:

  • Serve it as a side to grilled or roasted chicken
  • Place a poached egg on top for a tasty, veggie filled breakfast
  • Add some baked or poached whitefish for a super light and healthy meal
Easy Skillet Ratatouille with fresh basil leaves.

More Easy Skillet Recipes

Easy Skillet Ratatouille
Print Pin
4.72 from 7 votes

Easy Skillet Ratatouille

This Easy Skillet Ratatouille recipe is a quick and simple way to prepare ratatouille without baking or using a mandoline slicer. It makes a delicious and healthy side dish that's loaded with summer vegetables.
Course Side Dish
Cuisine Italian
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings 6
Calories 168kcal

Ingredients

  • 5 tablespoons olive oil divided
  • 1 1/2 pounds eggplant cubed
  • 1/2 pound zucchini cubed
  • 1/2 pound yellow squash cubed
  • 1 medium onion diced
  • 1 red bell pepper seeded and diced
  • 4 garlic cloves minced
  • 1 pound Roma tomatoes diced
  • 1 tablespoon fresh thyme leaves
  • 1/2 cup basil leaves roughly torn
  • sea salt
  • black pepper

Instructions

  • Heat 3 tablespoons of the olive oil in a large skillet over medium heat. Add the eggplant along with a small pinch of salt and sauté until tender, about 8-10 minutes. Transfer to a bowl.
  • Pour another tablespoon of olive oil into the skillet. Add the zucchini and yellow squash. Season with a small pinch of salt and saute until tender, about 5 minutes. Transfer to the bowl with the eggplant.
  • Pour in the remaining tablespoon of olive oil. Add the onion and red pepper and saute until tender, about 5-6 minutes.
  • Add the garlic and cook until fragrant, about 30 seconds.
  • Add the tomatoes, thyme, and a large pinch of salt to the skillet. Cook the tomatoes down until they are extremely tender and their juices have released, about 8-10 minutes.
  • Add the eggplant and squash back to the skillet. Simmer for another 4-5 minutes.
  • Stir in the basil and season with black pepper and more salt to taste before serving. 
Tried this recipe?Mention @sophisticatedcaveman or tag #sophisticatedcaveman on Instagram!

Nutrition

Calories: 168kcal | Carbohydrates: 14g | Protein: 3g | Fat: 12g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 9g | Sodium: 399mg | Potassium: 701mg | Fiber: 6g | Sugar: 9g | Vitamin A: 1590IU | Vitamin C: 54mg | Calcium: 43mg | Iron: 1mg

The ingredient or equipment sections above may contain affiliate links to products that I personally use or recommend!

This quick, clean, and tasty Easy Skillet Ratatouille is the perfect way to use up all the summer vegetables. Paleo, Whole30, Vegan

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Recipe Rating




Karly Cavanaugh

Tuesday 12th of March 2024

I love this recipe! I prepared all of the ingredients in separate bowls before hand so that it was easy to switch between the eggplant and zucchini/squash when sauteing and easy to add the seasonings when needed. I highly recommend making sure that your skillet is large enough because I used at 10 inch without realizing and it was a little bit too small but still worked great! I also added some canned fire roasted diced tomatoes with liquid and a dash of balsamic vinegar along with the Roma to make the sauce a bit less thick. Since I only had one zucchini and it was a bit small, I will definitely be remaking this recipe with a second. I may also add some red pepper flakes and smoked paprika! Excited to explore this blog for more recipes :D

The Sophisticated Caveman

Tuesday 9th of April 2024

Thanks so much for the comment, Karly! Love all of your ideas to spice up the recipe!

Laurie A

Wednesday 12th of October 2022

We enjoyed this with our garden veggies!

The Sophisticated Caveman

Tuesday 18th of October 2022

Thanks for the comment--that's great to hear!!

Eve

Wednesday 8th of September 2021

Stumbled on your site and can't wait to binge it! Made sauteed eggplant and zucchini last night--my favorite go-to oil presently is olive oil with avocado oil. Have you tried it? Really adds depth. I have a question about your cast iron skillet--have you had any issues with reducing or cooking tomatoes in it? After a few tomato-based recipes (not yours) took off my seasoning, my kitchen is almost a tomato-no-zone (yes I hold grudges)...thus the question. Thanks!

The Sophisticated Caveman

Monday 13th of September 2021

Hi Eve! I haven't tried that particular oil blend yet, but it sounds delish! As far as tomatoes in cast iron goes, I just try to avoid using cast iron for recipes that involve simmering tomatoes for extended periods of time (longer than 30 minutes). I haven't really had issues with them removing seasoning in shorter sautées. Happy cooking!

Piper Billingsley

Saturday 24th of July 2021

Delicious and healthy!!!

Michelle Dube Harkness

Wednesday 7th of October 2020

Quite nice. Excellent recipe.

The Sophisticated Caveman

Saturday 10th of October 2020

Thank you!!