Cheesy French Onion Cauliflower


If you like French onion soup, you'll love this baked cauliflower coated in melted Gruyère cheese and sweet caramelized onions. Enjoy this as a side dish alongside roast chicken or steak, or as a healthy appetizer. We called for vegetarian Worcestershire sauce in this recipe to keep the recipe vegetarian, but if you don't care about it being vegetarian, feel free to use regular Worcestershire.

Active Time:
20 mins
Total Time:
45 mins


  • 2 tablespoons extra virgin olive oil, divided

  • 1 large onion, halved and sliced (about 2 cups)

  • 1 teaspoon Worcestershire sauce, preferably vegetarian

  • ¾ teaspoon dried thyme

  • ½ teaspoon ground pepper, divided

  • 5 cups cauliflower slices (¼ inch thick; about 1 medium head)

  • ½ teaspoon garlic powder

  • ¼ teaspoon salt

  • ½ cup shredded Gruyère cheese


  1. Preheat oven to 450°F. Coat a large rimmed baking sheet with cooking spray.

  2. Heat 1 tablespoon oil in a large skillet over medium heat. Add onion and cook, stirring occasionally, for 5 minutes. Add Worcestershire, thyme and ¼ teaspoon pepper; reduce heat to medium-low and continue cooking, stirring often, until golden brown, 10 to 15 minutes more. (Add a tablespoon or two of water during cooking if the pan seems dry.) Remove from heat.

  3. Meanwhile, arrange cauliflower slices in one layer on the prepared baking sheet. Combine the remaining 1 tablespoon oil with garlic powder and salt in a small bowl. Brush the mixture over the cauliflower slices. Roast until tender, about 10 minutes. Remove from oven and top with the reserved caramelized onions and cheese. Continue roasting until the cheese has melted, 2 to 3 minutes.

    French Onion Cauliflower Bites
    Jacob Fox

Nutrition Facts (per serving)

84 Calories
6g Fat
6g Carbs
4g Protein
Nutrition Facts
Calories 84
% Daily Value *
Total Carbohydrate 6g 2%
Dietary Fiber 2g 7%
Total Sugars 2g
Protein 4g 8%
Total Fat 6g 8%
Saturated Fat 2g 10%
Cholesterol 7mg 2%
Vitamin A 69IU 1%
Sodium 149mg 6%

Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate.

* Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.)

(-) Information is not currently available for this nutrient. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs.

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