Easy Slow Cooker Ratatouille Recipe
Vegan | GF | Nut-free | No rice
This easy slow cooker ratatouille is a vibrant summer vegetable and potato stew inspired by the traditional vegetable dish from the Provence region of southern France.
Made with courgettes (zucchini for US readers), peppers, tomatoes, potatoes, and tofu, it’s a perfect vegan Crock Pot meal for those days when you’re low on energy, need to cook in bulk, or when you just want dinner to sort itself out.
When I first heard of ratatouille, I was intrigued. And amused. My mum pronounced it in Dutch as ‘ratjetoe’, which roughly translates as rat pudding. Rat pudding. Yummm! 🤣
She never made the dish, and I didn’t actually try it until after I’d left home. I liked it well enough, but didn’t care at all for the aubergine (egg plant, for US readers). So I developed my own version. Without aubergine.
A delicious vegetable stew adapted to my taste and fluctuating energy levels.
Why You’ll Love This Easy Ratatouille Recipe
First and foremost: the slow cooker does most of the work for you. But that’s not all. This ratatouille recipe is perfect for hot summer days when you don’t want to heat up the kitchen. Using a large slow cooker also makes this a great dish for batch cooking; this dish is freezer-friendly.
This recipe is endlessly adaptable: customise it to use up whatever vegetables you have on hand—even leafy greens. Just add your leafy greens shortly before serving and they’ll be perfect.
And last but not least: thanks to the potatoes and tofu, this is a complete one-pot dinner.
What’s not to love?
Spoonie Tips For Slow Cooker Ratatouille
I’ll be honest: this is not a dish to make when you’re already running on empty. Cleaning and chopping all these vegetables takes a lot of time—and spoons.
BUT… with these shortcuts, you can make things a little easier and more streamlined.
- Use pre-chopped onions.
- Use minced garlic from a jar.
- Skip pressing the tofu.
- Use dried herbs instead of fresh.
- Buy potatoes that don’t need peeling.
- Prep vegetables ahead using the 5-minute method.
No-Aubergine Ratatouille Ingredients
For this recipe, I used mainly fresh whole ingredients: courgettes, bell peppers, onions, potatoes, and fresh herbs. But you don’t have to. Using pre-cut veg and potatoes and dried herbs is absolutely fine—and saves a lot of time and energy. Just make sure the pre-cut vegetables aren’t too small. Because that would ruin the entire dish.
How To Make This One-Pot Vegetable Dinner
Aubergine Slow Cooker Ratatouille
Equipment
- 1 Slow Cooker
Ingredients
- 2 courgettes (zucchini)
- 3 bell peppers
- 2 onions
- 3 potatoes
- 250 g firm tofu
- 1 400 g. tin chopped tomatoes
- Garlic
- Thyme, oregano, bay leaf
Instructions
- Peel and quarter onions.
- Wash or peel potatoes, courgettes, and peppers, and cut them into chunks roughly the size of a cherry tomato.
- Finely chop or crush garlic.
- Add the ingredients in the following order: potatoes and onions, peppers, tomatoes, garlic, herbs, olive oil, salt, and pepper. Place courgettes on top.
- Do not add extra liquid unless your slow cooker runs unusually hot.
- Cook on low for 5-6 hours, or on high for 2½-3 hours.
- Press tofu and cut into fairly large cubes, and add it during the final 60–90 minutes of cooking.
Notes
Easy & Delicious Ratatouille Variations
Bean Version
Replace the potatoes and tofu with a 400 g tin of drained chickpeas or cannellini beans. Add the beans during the final hour of cooking.
Ratatouille with Aubergine
My recipe is aubergine-free. But if you like aubergine, simply add one diced aubergine alongside the potatoes.
More Easy Variations
- Replace the tofu with chickpeas or butter beans.
- Use smoked tofu for extra flavour.
- Replace some or all of the peppers with mushrooms.
- Swap the potatoes for sweet potatoes.
- Add a handful of leafy greens shortly before serving.
Serving Suggestions for this Vegan Slow Cooker Meal
Thanks to the potatoes and tofu, which add starch and protein, you can eat this vegan ratatouille as a full standalone meal.
Or you can serve it as a side dish over polenta, or with a few slices of crusty gluten-free bread.
How To Store Your Slow Cooker Ratatouille
Allow the ratatouille to cool before storing. Store in an airtight container in the fridge for up to 3–4 days, or in the freezer for up to 3 months.
Allergy Information
Contains: Soy (Tofu)
Free from: Dairy, Gluten, Eggs, Nuts, Sesame
Important: Always check labels for allergens and cross-contamination risks
Disclaimer
I’m not a dietitian; this recipe and any nutritional or allergy-related notes are based on personal experience and should not replace professional advice.
If you like this recipe, you might also enjoy this easy slow cooker polenta recipe or roasted vegetable tray bake.
Frequently Asked Questions About Slow Cooker Ratatouille
Yes. You can either replace the tofu with chickpeas, butter beans, or cannellini beans, or simply leave it out altogether.
Courgettes, onions, and tomatoes release moisture during cooking. Removing the lid slightly for the final 30–45 minutes helps excess liquid evaporate.
Absolutely. Using fresh herbs will actually make the dish even better. I used fresh thyme and rosemary. Oregano also works really well. No need to strip the leaves: just add whole sprigs and remove the stems before serving.
You can chop the vegetables the day before and store them in the fridge until you’re ready to cook.
Certainly. This recipe freezes well, which makes it ideal for batch cooking.
Want more simple, comforting recipes that work on low-energy days?
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