This tender, savoury Low FODMAP Ratatouille is made with fresh eggplant, zucchini, and garlic-infused oil and ready in 45 minutes. The vegetables slowly simmer into a rich, cohesive sauce while retaining their individual textures. I rely on this recipe whenever I need a comforting vegetable stew that doesn’t trigger symptoms.
Why This Classic Works
Traditional ratatouille relies heavily on a base of onions and garlic to build flavor, which is exactly what makes it difficult for those of us with sensitive stomachs. I found that starting with a high-quality garlic-infused olive oil provides that essential savory depth without the fructans that cause digestive issues.
My first attempt at this dish failed because I threw all the vegetables into the pot at once, resulting in a watery, mushy mess. I learned that searing the eggplant separately first is the secret to keeping it creamy and distinct, rather than having it act like a sponge that soaks up all the liquid.

Low FODMAP Ratatouille Ingredients
- 3 tablespoons garlic-infused olive oil, divided
- 1 medium eggplant (aubergine), cut into 1-inch cubes
- 1 medium zucchini (courgette), sliced into half-moons
- 1 red bell pepper, seeds removed and chopped
- 1 can (14 oz/400g) diced tomatoes, no onion or garlic added
- 1 teaspoon dried thyme
- 1 teaspoon dried oregano
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- Fresh basil leaves, for garnish

How To Make Low FODMAP Ratatouille
- Sear the Eggplant: Heat 2 tablespoons of the garlic oil in a large skillet or Dutch oven over medium heat. Add the eggplant cubes in a single layer and cook for 5-7 minutes until golden and softened, then remove to a plate.
- Sauté Vegetables: Add the remaining 1 tablespoon of oil to the pan. Add the chopped red bell pepper and zucchini slices, cooking for about 5 minutes until they begin to soften and brown slightly at the edges.
- Simmer Stew: Stir in the diced tomatoes (with their juices), dried thyme, oregano, salt, and black pepper. Return the cooked eggplant to the pan and mix gently to combine everything.
- Finish Cooking: Reduce the heat to low, cover the pan, and simmer for 20 minutes. Remove the lid for the final 5 minutes to thicken the sauce, then garnish with fresh basil before serving.

Recipe Tips
- Check the Oil: Ensure your garlic-infused oil is free of actual garlic pieces or sediment. FODMAPs are water-soluble but not oil-soluble, so a pure infused oil is safe, but floating chunks of garlic are not.
- Watch Portions: Zucchini is considered low FODMAP at serving sizes of 65g (about 1/3 cup). This recipe serves 4, which keeps the zucchini portion well within safe limits for the elimination phase.
- Cut Uniformly: Chop all your vegetables to roughly the same size (about 1 inch). This ensures they cook at the same rate and you get a perfect mix of textures in every bite.
What To Serve With Ratatouille
This stew pairs beautifully with grilled chicken breast or a piece of white fish for a complete, light dinner. You can also spoon it over soft polenta or gluten-free pasta to soak up the savory tomato juices.
How To Store
Leftovers often taste better the next day as the flavors have time to meld. Store the ratatouille in an airtight container in the fridge for up to 4 days, or freeze it for up to 3 months.

FAQs
- Is eggplant low FODMAP? Yes, eggplant is considered low FODMAP in generous serving sizes of up to 1 cup (75g), making it a safe and substantial base for this stew.
- Can I use fresh tomatoes? Absolutely. You can substitute the canned tomatoes with about 3-4 medium fresh tomatoes, roughly chopped, though you may need to simmer it slightly longer to break them down.
- What if I don’t have garlic oil? You can sauté two smashed garlic cloves in regular olive oil for a few minutes to infuse the flavor, then discard the cloves completely before adding any vegetables.
Nutrition
- Calories: 120
- Total Fat: 8g
- Saturated Fat: 1g
- Cholesterol: 0mg
- Sodium: 310mg
- Total Carbohydrate: 12g
- Protein: 2g
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Low FODMAP Ratatouille
4
servings15
minutes30
minutes2
hoursTender Low FODMAP Ratatouille features chunks of eggplant and zucchini simmered in a savory tomato herb sauce, ready in 45 minutes. This gut-friendly dinner uses garlic-infused oil to deliver big flavor without the bloat. Perfect for a light weeknight meal.
Ingredients
3 tablespoons garlic-infused olive oil, divided
1 medium eggplant (aubergine), cut into 1-inch cubes
1 medium zucchini (courgette), sliced into half-moons
1 red bell pepper, seeds removed and chopped
1 can (14 oz/400g) diced tomatoes, no onion or garlic added
1 teaspoon dried thyme
1 teaspoon dried oregano
1/2 teaspoon salt
1/4 teaspoon black pepper
Fresh basil leaves, for garnish
Directions
- Heat 2 tablespoons of the garlic oil in a large skillet or Dutch oven over medium heat. Add the eggplant cubes in a single layer and cook for 5-7 minutes until golden and softened, then remove to a plate.
- Add the remaining 1 tablespoon of oil to the pan. Add the chopped red bell pepper and zucchini slices, cooking for about 5 minutes until they begin to soften and brown slightly at the edges.
- Stir in the diced tomatoes (with their juices), dried thyme, oregano, salt, and black pepper. Return the cooked eggplant to the pan and mix gently to combine everything.
- Reduce the heat to low, cover the pan, and simmer for 20 minutes. Remove the lid for the final 5 minutes to thicken the sauce, then garnish with fresh basil before serving.
