Slow Cooker Ratatouille {Summer Vegetable Stew}

Slow Cooker RatatouilleA couple of weeks ago my family was on vacation in sunny southern California.  Several friends commented on my instagram photos that it was unusually cool and rainy back home in Idaho.  As much as I adore sunshine and beach weather, as a temperate-blooded Seattle girl, I couldn’t wait to get home to cooler temperatures.  Turns out it was just a cruel joke by mother nature.  Like much of the rest of the country, we came home to a heat wave.

A lot of people only pull out their slow-cookers in the fall and winter, but it’s actually one of my favorite cooking methods when the temperatures rise and it’s even too miserably hot to venture outside to the bbq to grill.  It doesn’t put out a lot of heat in your house, and it’s super low maintenance.  The great thing about this recipe that makes it absolutely perfect for summer is that it uses tons of vegetables, and most of these are ones I have growing in my yard.  It’s a great way to use up those garden goodies!  Even if you don’t have a garden yourself, these classic summer veggies are in season right now, which means they should be at low prices in stores as well.

Summer Veggies 2

Traditional ratatouille, cooked uncovered in the oven, relies on evaporation to get rid of the large amounts of moisture contained in the vegetables.  If you just tossed all of the vegetables in a slow-cooker, a device designed to trap and contain heat and moisture, you’d get a watery mess.  That’s what has turned me away from slow-cooker ratatouille recipes in the past, and what made me so excited to see a solution in a recent issue of Cook’s Country.  Broiling the vegetables before popping them in the slow-cooker not only evaporates a lot of the excess liquid, but it adds flavor through caramelization.  The result is an amazingly flavorful, thick vegetable stew.  It may not be the prettiest dish (okay who am I kidding, it’s not pretty at all) but I will tell you- I could NOT stop eating this stuff.  It was so perfect with a yummy loaf of crusty bread, and it made the perfect light summer meal.  What amazed me the most, is that my kids ate it without a second thought.  I told them it was soup, and didn’t mention it was straight-up 100% vegetables and none of them complained.  I’m still sort of amazed by that.  Maybe I forgot to feed them that day so they were unusually hungry.  It happens.

Seriously though, I wish you could all come over to my house and eat a bowl of this because I know it just sounds like a bunch of vegetables tossed in a crock pot but trust me- it’s SO GOOD.  Just try it.  It’s good for you (bonus!).  We’ll start with eggplant, zucchini (you could use some yellow squash too), red bell pepper, onion, and garlic.

Summer Veggies

Chop them up into big pieces and drizzle with olive oil, a little sugar, and some spices.

Chopped Garden Veggies
A signature flavor in this dish, and lots of French cooking, is herbs de Provence (Provence is a region in France).  You can find it with the rest of the spices in the grocery store.  It’s one of my favorite seasonings, a mix of yummy things like rosemary, savory, fennel, basil, thyme, and most uniquely, lavender.

Herbs de Provence

You’ll spread out your veggies over 2 baking sheets and trust me, you’ll need both!  This will look like a ridiculously large amount of food, but it cooks way, way down, so resist the urge to cut the recipe in half.  Pop those under the broiler until they’re nice and golden brown and caramelized.  If you have heat setting options on your broiler, I’d recommend using a medium heat so they can broil for a good 10 minutes or so.  This step gets rid of lots of liquid and adds great color and flavor.

Roasted Veggies

As soon as those veggies are done you can toss them in your slow-cooker along with a big can of diced tomatoes that have been drained.  Next time I make this I’m going to experiment with fresh tomatoes, but the canned work great.

Drained Tomatoes

That all gets stirred together with a little flour (which will thicken the juices into a sauce as it cooks) and salt and pepper.  Cook it on low for about 4 hours.  I love this recipe for Sundays because we’re away at church for 3 hours, so I can start it cooking before we leave and it’s hot and yummy right when we get home (and the house smells like heaven.)

Flour in veggies

To finish, add in fresh chopped basil and grated Parmesan cheese.  The original recipe calls for adding in additional olive oil at the end, but I didn’t feel like it needed that at all. I did however feel that it would benefit from just a bit of acidity so I added in a drizzle of balsamic vinegar and it was perfection.

Parm and Basil in Ratatouille

I’m telling you, this is like pure summer in a bowl.  Every yummy flavor of your garden all in one dish.

Perfect Summer Garden meal-Slow Cooker Ratatouille from Our Best Bites

And it must, must be eaten with a big chunk of crusty bread.

Crusty Bread

This easily serves 8-10 as a side dish, and if you want to make it a more substantial meal, pair it with grilled cheese panini, or a ham and cheese sandwich and a salad.  It also goes great with grilled chicken, fish, or steak.  Or pasta.  Okay, pretty much anything.  And as one reader noted after eating it in France, it’s great served over something like couscous, rice, or pasta as well.

The perfect summer garden meal-Slow Cooker Ratatouille from Our Best Bites





    1. I love ratatouille and have made a similar version for many years. If the eggplant in the store looks pathetic, I just use extra zucchini to replace it.

    1. It’s usually served hot, but I ate some cold and it was still delish 🙂 Because of the flour, it thickens quite a bit when chilled, so I prefer it hot.

  1. I fell in love with Ratatouille when I was a missionary in France. It is the perfect summer dish. I’m excited to try it in a slow cooker. I remember the first time I was served it was over couscous. It is very good that way but a crusty loaf of bread works well too.

  2. This does sound yummy and perfect for the Summer veggie season. Could I use corn starch to thicken it? (Hubby has a wheat allergy)

    1. I was wondering the same thing. I know corn starch and flour are both used for thickening, but don’t know how interchangeable they are.

  3. This sounds amazing! I have a ton of tomatoes from my garden. Do you think I should try broiling them with the rest if the veggies, or just stick them in the crock pot raw? It just kills me to think of using canned when I have so many fresh.

    1. I’m with Carie. We have tons of cherry tomatoes, but wondering if they should be cut in half and broiled or just tossed in slow cooker.

    2. I know! If you’ve ever read Cook’s Country, you know they test EVERYTHING in a recipe, and the author tested this with tomato paste, fresh tomatoes, and canned tomatoes, and the canned worked best so that’s what the recipe was designed around. But I think with some experimenting, fresh would work great too. My tomatoes are just barely turning red, so in the next couple of weeks I’ll be able to try it out and see!

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