Roasted Romanesco Cauliflower & Potatoes

Creamy potatoes, delicate Romanesco, and a tangy-sweet vinaigrette come together to create the perfect side or vegetarian main in this Roasted Romanesco Cauliflower & Potatoes.

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This Roasted Romanesco Cauliflower and Potatoes is a throwback of sorts. A recipe I pulled together a few years ago, but one that I could not forget. One that at the moment I saw Romanesco in the store today, I instantly remembered and had to remake.

I remember the first time I tasted a Romanesco. Living in San Francisco, I had just signed up for Imperfect Produce. When it appeared on in the box on my doorstep, I had never before seen the lime green conically shaped floret vegetable.

Clear bowl of roasted Romanesco Cauliflower and Potatoes tossed in a red wine vinaigrette. Blue and white dish towel with a spoon handle in the background.

Immediately, I googled Romanesco and read about its delicate and nutty flavor. Similar in its texture to cauliflower, I thought of how good it might be roasted. So I did with some potatoes and the firmer texture seemed to hold up to the heat better and the flavor did not disappoint. It had a refined broccoli flavor to it that almost got buttery under the heat.

Even though I tossed the romanesco with some seasonings and salt before roasting, the nuttiness of the vegetable seemed to call out for the balance of a tangy sweet sauce. I then tossed it with a maple red wine vinaigrette and had a dish that was worthy of remembrance and re-enactment these 2-3 years later.

Cooking Notes:

  • Where to find a Romanesco Cauliflower: these bad boys can be a bit obscure and hard to find-- hence how I went without them for a few years, but they often can be found in more specialty produce markets like Whole Foods in spring or late fall.
  • How to choose a good Romanesco Cauliflower: look for one that is firm to the touch and dense for its size. Choose one with the least amount of brownish spots on the florets, too, for the freshest vegetable.
  • Roasting: make sure not to crowd the pan of veggies will roasting. The more room the veggies have on the pan, the more they can brown and carmelize. Having the veggies too close together means too much steam and, therefore, mushy veggies. Sad.
  • Potatoes: not feeling white potatoes? Feel free to sub in a sweet potato.
  • Sweeteners: similarly, if you don't have or aren't feeling maple syrup, you can sub in honey. Honey will not, however, be vegan.
  • How to cut a romanesco: just like a cauliflower! Peel the leaves off around the edges and then cut the florets off around the stem center. If a floret is larger than 1 ½-2 inches, cut it in half.

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Roasted Romanesco Cauliflower & POtatoes on white serving dish. Dish sits on a blue and white towel next to a dish of vinaigrette.

Roasted Romanesco Cauliflower & Potatoes

Chelsea Plummer | Mae's Menu
Roasted Romanesco and potatoes are tossed in a tangy- sweet red wine vinaigrette. Serve over rice or couscous for a vegetarian main or serve as a side to grilled chicken or roast pork. Otherwise gluten-free and vegan..
Prep Time 5 minutes
Cook Time 22 minutes
Total Time 30 minutes
Course Dinner, lunch
Cuisine American

Ingredients
  

Roasted veggies:

  • 2 tablespoons olive oil
  • 1 head romanesco cut into 1 ½- 2 inch florets
  • 1 large russet potato cut into ½ inch cubes
  • ½ red onion cut into a medium or ¼ inch dice
  • ¾ teaspoon salt
  • ¾ teaspoon cumin

Red Wine Vinaigrette:

  • 3 tablespoons olive oil
  • 2 tablespoons red wine vinegar
  • 1 ½ tablespoons maple syrup
  • 1 teaspoon dijon mustard
  • 2 tablespoons water
  • ¼ teaspoon salt
  • Few cracks black pepper

Instructions
 

  • Preheat oven to 425 degrees. Coat a large rimmed cookie sheet with olive oil and toss the romanesco, potatoes, and onion in the oil. Sprinkle with salt and cumin and toss further until all the veggies are evenly covered with seasonings and oil.
  • Roast veggies for 22-24 minutes, or until the romanesco and potatoes are starting to brown around the edges, stirring the veggies halfway through.
  • Whisk together the vinaigrette ingredients in a small bowl or lidded jar (if in a lidded jar, just shake the ingredients) vigorously, or until the oil is starting to emulsify, or combine in with the vinegar and water.
    Clear glass bowl with red wine vinaigrette and a fork in it.
  • When done roasting, toss the veggies with the vinaigrette in a serving bowl. Serve immediately or spoon over hot rice and serve immediately!
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One Comment

  1. I like to mix the seasonings with the oil, then toss the veggies in it. This ensures an even distribution. "Pro Tip"? I suppose so. I did this sort of thing for a living for many years...even got a degree in it. Highest "rank" achieved: Head Chef, which basically took me out of the kitchen for most of the time. Deal with customers? I retired...