These oil free rainbow roasted vegetables are so delicious, healthy, low in fat and easy to make. It's one of my favorite side dish recipes!

To roast vegetables without oil is possible and they taste amazing. I used balsamic vinegar, but soy sauce, tamari and lemon or lime juice also work. If you're on a diet or just trying to avoid oils, these oil free rainbow roasted vegetables are for you.
I try to eat as many different fruits and veggies as I can, I adore them and they nourish my body. I love these colorful rainbow veggies, they're full of antioxidants and nutrients, but there's no need to use so many vegetables, it's totally up to you.
When I tried this recipe for the first time, I couldn't believe it was oil-free, the veggies were so juicy and I only added the balsamic vinegar and dried thyme, but please feel free to add your favorite herbs and spices.
This recipe is ridiculously easy to make, you just have to place the chopped vegetables onto a baking sheet, add dried thyme and balsamic vinegar to taste and bake for about 25 minutes or until they're cooked. Besides, it's the perfect side dish! I love to eat these veggies with brown rice and some tamari or soy sauce, but they're also delicious with potatoes, pasta or quinoa.
If you like these oil free rainbow roasted vegetables, check out these recipes: spicy roasted chickpeas, and roasted red pepper hummus.
Did you make this recipe? Please leave a comment below, share it, rate it or tag a picture @simpleveganblog on Instagram and hashtag it #simpleveganblog. We’d love to see what you cook!
Oil Free Rainbow Roasted Vegetables
Ingredients
- 1 and ⅔ cups chopped red bell peppers
- 2 cups chopped carrots
- 1 and ⅓ cups chopped yellow bell peppers
- 1 and ⅔ cups chopped zucchini
- 1 cup broccoli florets
- 1 cup chopped red onions, 200 g
- 1 tablespoon dried thyme
- Balsamic vinegar to taste
Instructions
- Preheat the oven to 400 ºF or 200 ºC.
- Place the chopped vegetables onto a baking sheet, add the thyme and balsamic vinegar to taste.
- Bake for about 25 minutes or until the vegetables are cooked.
- Store the veggies in a sealed container in the fridge for 3 to 4 days.
Notes
- Feel free to use your favorite veggies, herbs or spices.
- Tamari, soy sauce, lemon or lime juice or any other type of vinegar can be used instead of the balsamic vinegar.
Cuttitto Sandra says
Perfect side for Thanksgiving
Iosune says
Hi Cuttitto! So glad you like it 🙂
Realtimedairy says
What a great recipe. Its so easy that my kids could also participate and they loved it. Thanks
Iosune says
Hi! So glad you and your kids enjoyed it 🙂
Steve Daire says
This recipe wouldn't have come to my attention at a better time. Just when i was thinking of a nice surprise i bump into this and woow!!! the results were splendid. Thanks for making me look like the culinary guru.
Iosune says
Hi Steve! Hahaha you're so welcome. So glad you liked it so much 🙂
VeggieTater says
Yum, thanks! I was planning on making a giant pasta salad to take to a picnic and these roasted veggies were fantastic in it and brought it to a whole new level, hot or cold! I tossed in some chopped tomatoes, canned black olives and water packed artichoke hearts, reserved some liquid from both, and blended it with an avocado, silken tofu, lemon and more balsamic, and some Mediterranean herbs, for a creamy no oil dressing... awesome!
Iosune says
Hi there! Sounds really good 🙂 Have a nice day!
Breann says
Hello! I was reading your post about starting a food website and saw that you mentioned using the Foodie theme. Are you still using that theme? I bought Foodie thinking it could look like your beautiful website but I'm wondering if you since switched to a more customized theme (as I can't achieve that look)? If so, you may consider updating that info so that clueless people like me don't purchase Foodie thinking it will look as good as yours 🙂
Iosune says
Hi Breann! I'm so sorry for the inconvenience. We have a custom theme since April, created by a designer for us. Have a nice day!
loxner says
I was searching for a side dish to make tonight, this looks amazing. Thank you. However, in reading the reviews I almost do not want to follow this site (not due to the author), because people are just MEAN. There was no warning or statement that says if you are not vegan you are not allowed on this site. People were leaving nice reviews and were attacked for their choices. Not cool. Everyone is on a journey, instead of berating, why not encourage them along the way! How awesome that people are making and eating this great and healthy recipe! Why chase them away from possibly finding more great and healthy recipes?? Iosune this is NOT directed at you, but the people who responded.
Iosune says
Hi Loxner! 99% of the comments on the blog are positive comments, so don't be afraid to leave one. Just ignore mean people and do what you think you should do 🙂
Bridget says
I’m not trying to be mean with this comment to Loxner but this is how I feel about the comment. If you eat meat and dairy you haven’t made the connection between the cruelty and slaughter you’re financing everyday by what you’re choosing to put on your plate . To vegans and vegetarians this is highly offensive. I’m tired of explaining why I’m vegan. How difficult is it to understand? Cruelty and slaughter of animals is “not cool”. It’s indefensible!! Visit a factory farm or abattoir. Or just peer through the tiny holes on an animal transport truck. Look into the eyes of any individual animal. You’ll feel their terror and helplessness.They have miserable lives full of pain and suffering and horrific deaths. It will help you understand why vegans feel and speak the way we do. It certainly will open your eyes. Don’t get me started on the health benefits of being vegan.
Iosune says
Hi Bridget! I agree, that's why I'm vegan 🙂
Gwendolyn Lewis says
Thank you for such a delicious recipe! I was a skeptic, but no more! For years I couldn't imagine cooking without oil, but you have opened a whole new world for me. I followed the recipe as is with one addition: Coconut Aminos with Garlic! Yum!
Iosune says
Hi Gwendolyn! You're so welcome 🙂 Sounds amazing!
Ashley says
Wow, this looks so healthy beautiful and delicious! Definitely a must make. ❤️❤️
Iosune says
Hi Ashley! Thanks a lot 🙂 So glad you like it!
Anne-Ashley says
Does this freeze well? I was planning on making this and serving with rice or a protein for lunch. I like to freeze meals individually and then reheat in the microwave for lunch on the go.
Iosune says
Hi Anne-Ashley! I've never frozen it, so I can't help you, sorry!
Dani says
hat else would you make with this for a meal? I would be fine just esting roasted veggies, however my husband is traditional in needing 2 sides to an entre'. I'm sure even my kids would be like...this is it? what else did you make.... usually id grill chicken to go with it but I am trying to weed meats out of our diet.
Iosune says
Hi Dani! I'm vegan, so I don't eat meat and I think it's not a healthy food at all. I eat them with some plant-based protein, usually legumes and some starch (potatoes and rice are my favorite ones). Have a nice day!
Mary Fisher says
You might well think that eating meat is not healthy but you won't convince anyone unless you provide evidence and there's none around. My family has eaten some meat (not chicken - chickens read for meat aren't usually healthy in themselves - and we are all extremely healthy. My husband and I are approaching 80 and people don't believe it, we're so strong, active and look much younger. We don't think it's because of the meat we eat but that meat certainly hasn't made us unhealthy. I'm having to cook tonight for someone who won't eat carbs or dairy, it's a nuisance but I've found your balsamic roasted veg so she'll have that, we might all have it, it will be easier.It should go well with the venison Wellington 🙂
Iosune says
Hi Mary! There are so many scientific studies proving meat is not good for our health. You should read The China Study or How Not To Die. The longest-lived cultures in the planet barely consume animal products, besides, vegans and vegetarian are healthier and live longer. If you want more information (books, studies or whatever) you can send me an email 😉 Have a nice day!
Vera says
It's incredible how civil you can be to such blatantly disrespectful unhealthy-in-denial animal abusers like this Mary lady. One reason why I could never have my own blog! Such rude and ignorant people in the world...
GingerB says
I made this last Easter for something different and it was a HUGE hit! Not only is it beautiful and everyone loved seeing the different colors set up that way but this actually was the first thing to go on my Easter dinner table. I'm DEFINITLY making it again this year! Thank you
Iosune says
Hi there! I'm so glad you liked it 😀 Have a nice day!
Kim Diroy says
With the different textures and densities, do the veggies all cook well with 25 minutes? None are over or undercooked?
Iosune says
Hi Kim! No they aren't, I think the recipe works pretty well 🙂