This bright and colorful Baked Sheet Pan Ratatouille is a modern twist on the classic French chunky summer vegetable stew, rich with olive oil and fragrant with plenty of herbs. Serve over creamy polenta for the perfect summer dinner.
Ratatouille – I LOVE this classic French stew made from eggplant, zucchini, peppers and tomatoes and summer is the prime time to make this easy vegan dinner with local produce.
This sheet pan Ratatouille is indeed the perfect recipe to serve all those beautiful farmers’ market veggies that are popping up during the warm months! As we know, roasting veggies really boosts their flavor and brings out their natural sweetness so an oven baked ratatouille is seriously the best way to showcase summer vegetables! It’s so easy, it’s healthy and it’s versatile.
You can make a big batch of Baked Ratatouille on a Sunday, then serve it up in different ways during the workweek! I love serving my baked veggies over creamy polenta, but I also really like this served with pasta, mashed potatoes, and even over toast!
Whether made on a sheet pan or a casserole dish, baked Ratatouille is so simple yet flavorful with those dried herbs – trust me, you won’t tire of it. This simple casserole version takes only 15 minutes of prep work before the pan goes into the oven to roast.
The only hands-on part of this recipe is chopping the eggplant, summer squash, zucchini, bell pepper, tomatoes, and onion. Then it gets all tossed with olive oil, herbs, salt, and pepper and then roasted in the oven for about 45 minutes during which your house will start to smell incredible.
Once done, you can either dig in right away or store your ratatouille in the fridge for the workweek. Or freeze it!
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Sheet Pan Ratatouille with Polenta
Ingredients
- 1 medium eggplant cubed
- 1 summer squash cubed
- 1 zucchini cubed
- 1 red bell pepper chopped into ¾ inch slices
- ½ onion chopped, or thinly sliced
- 2 tsp olive oil
- 1 tsp dried oregano
- 1 tsp dried basil or 2 tbsp fresh basil
- ½ tsp dried thyme
- ½ tsp salt
- ¼ tsp black pepper
- 15 oz (425 g) can of tomatoes or 3 tomatoes, chopped
For the polenta
- ½ cup (80 g) polenta or grits
- 2 cups (475 ml) of water or broth
- ½ tsp salt
- 2 tsp nutritional yeast
- 1 tbsp vegan butter
Instructions
- Chop all the vegetables and add to a baking dish. Use a baking dish that is large enough that all the vegetables are in a single layer.
- Drizzle the oil all over over, then mix in. Add in the herbs, salt, and pepper, and mix in, and spread again.
- Bake at 400 degrees F ( 205 c) for 30 to 35 minutes, or until the eggplant is almost done.
- Add in your tomatoes, and mix in, and bake for another 10-15 minutes so that the tomatoes start to get tender.
- In the meanwhile, make your polenta by heating up the water until hot, then add in the polenta gradually while whisking. Add in salt nutritional yeast, vegan butter, and mix in. Continue to cook until the polenta is cooked to preference.
- Remove the baking dish from the oven, and then taste and adjust flavor.
- Serve the baked ratatouille over the polenta in bowls. Sprinkle some pepper flakes, fresh basil, or parsley.
Video
Notes
- Make sure not to crowd the pan too much and make sure your oven comes up to the perfect temperature. The high heat evaporates the liquid and concentrates their flavors while browning everything up in a delicious way.
- As for summer squash vs zucchini – I include a little of each just to make my ratatouille more colorful and appetizing, but if you’re having trouble hunting one down, it won’t affect the flavor at all to just swap it for the other. Or add more color by using yellow and red bell pepper.
- If you want, add a dollop of pesto, or pureed basil and garlic into the finished ratatouille. Another great final touch would be a splash of good sherry or red wine vinegar sprinkled over the roasted veg right in the end.
- If you don’t like eggplants, use zucchini. For the most part, if you want to substitute eggplant in a recipe, your best friend is zucchini as it behaves in much the same way as eggplant, although it cooks faster.
- Make this a bit in advance – ratatouille gets better with time and is so much better when eaten slightly chilled or at room temperature the next day.
Nutrition
Ingredients:
- veggies: I use summer squash, zucchini, eggplant, bell pepper, and onions.
- herbs: I use basil, thyme, and oregano but parsley, marjoram, and savory would also be good options. Some recipes even add some crushed fennel seeds and coriander so you could also try that.
- olive oil – use the good stuff.
- salt and black pepper – obviously
- the tomatoes can be added fresh or canned – it comes down to personal preference: Fresh tomatoes will hold their shape more in the finished ratatouille. If you want a more tomato-tinged ratatouille, use canned. If you want the other vegetables, like the eggplant, to shine through more, go with diced fresh tomatoes.
Tips
- Make sure not to crowd the pan too much and make sure your oven comes up to the perfect temperature. The high heat evaporates the liquid and concentrates their flavors while browning everything up in a delicious way.
- As for summer squash vs zucchini – I include a little of each just to make my ratatouille more colorful and appetizing, but if you’re having trouble hunting one down, it won’t affect the flavor at all to just swap it for the other. Or add more color by using yellow and red bell pepper.
- If you want, add a dollop of pesto, or pureed basil and garlic into the finished ratatouille. Another great final touch would be a splash of good sherry or red wine vinegar sprinkled over the roasted veg right in the end.
- If you don’t like eggplants, use zucchini. For the most part, if you want to substitute eggplant in a recipe, your best friend is zucchini as it behaves in much the same way as eggplant, although it cooks faster.
- Make this a bit in advance – ratatouille gets better with time and is so much better when eaten slightly chilled or at room temperature the next day.
How to make Sheet Pan Ratatouille:
Chop all the vegetables and add to a baking dish. Use a baking dish that is large enough that all the vegetables are in a single layer.
Drizzle the oil all over, then mix in. Add in the herbs, salt, and pepper, and mix in, and spread again. Bake at 400 degrees F ( 205 c) for 30 to 35 minutes, or until the eggplant is almost done.
Add in your tomatoes, and mix in, and bake for another 10-15 minutes so that the tomatoes start to get tender.
In the meanwhile, make your polenta by heating up the water until hot, then add in the polenta gradually while whisking. Add in salt nutritional yeast, vegan butter, and mix in. Continue to cook until the polenta is cooked to preference. Remove the baking dish from the oven, and then taste and adjust flavor.
Herb garnishes are up to personal taste. In these photos, I’ve stirred in some chopped parsley, but basil would work too. I sometimes stir in a bit more fresh olive oil for flavor right at the end.
Serve the baked ratatouille over the polenta in bowls. Sprinkle with some pepper flakes, fresh basil, or parsley.
Sheet Pan vs Casserole
Either works for this recipe. If you make a small serving, a big casserole dish will be fine but if you’re making lots, use a sheet pan instead.
Liz
This is amazing. I used butternut squash. Served it over mashed cauliflower. Will be making this again and again!
Vegan Richa Support
Awesome!
Ann
So good! Flavorful, colorful, full of the vegetables of summer. Even better the second day. Versatile enough for breakfast and/or lunch the second day.
Vegan Richa Support
yay!
Janice
Absolutely love this recipe. So much so, I am tripling the recipe today to make for a dinner party. Thanks so much for sharing.
Vegan Richa Support
yay! so glad you enjoy!
Joslynn
Delicious! First time making Ratatouille and it was very tasty. Thanks for the recipe!
Vegan Richa Support
so glad you enjoyed!
tse
Fantastic!!! For 2 people I used 1 med. eggplant and 1 small zucchini and lots of fresh basil along with the other ingredients. Subtle, sophisticated flavors, our new “comfort food.”
Vegan Richa Support
i like that description
Cheryl
I love this recipe and make it regularly. Heavenly on pasta, polenta, or potatoes. I have forgotten to wait to add the tomatoes later so often I just do it all at once now. I also omit the oil to make it compliant to the food plan I follow for weight loss. Just perfect!
Vegan Richa Support
low cal Doesn’t mean low flavour, right
mary
I can’t use oil either. Do you substitute with veggie broth or just roast the veggies plain? Thank you for any advice.
Vegan Richa Support
yes – you can just omit the oil!
JE
Perfection!!
Vegan Richa Support
hooray!
Emily
Made this for lunch. Turned out so amazing!!
Richa
Yay
Janet
Once again you did not disappoint. This is so delicious. I made cracked wheat to go with it because I didn’t realize I was out of polenta. Can’t wait to try it with the polenta. I will definitely be making this again. It was super fast and easy and uses all my favorite veggies. I can use this for my work lunch meal prep. I made extra to have for the week.
Richa
Awesome! Thanks!
Beekite
Ohhh, that looks delicious! I’m definitely going to try it. Thanks!
Richa
Thanks!