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    Home » Recipes » Sides

    Roasted Broccoli and Cauliflower (Oil-Free)

    Published: Jul 16, 2018 · Modified: Mar 14, 2025 by Elizabeth · This post contains affiliate links.

    Jump to Recipe Print Recipe

    This oil-free roasted broccoli and cauliflower is crispy and flavorful. Lightly seasoned with salt and red pepper flakes, this dish will become your new go-to side dish.

    A plate of roasted broccoli and cauliflower.

    Broccoli and cauliflower are two popular vegetables, but many people have horrifying memories of mushy broccoli and bland cauliflower. Not anymore!

    This roasted broccoli and cauliflower is crispy and delicious. And you don't need any oil!

    If you're looking for an easy way to make flavorful, oil-free roasted vegetables, this recipe is for you!

    Jump to:
    • Why I love this Oil-Free Roasted Broccoli and Cauliflower
    • How to roast vegetables without oil
    • Ingredient Notes
    • How to Make Roasted Broccoli and Cauliflower
    • Serving Suggestions
    • Frequently Asked Questions
    • Recipe Prayer
    • Related Recipes
    • Tried this recipe?
    • 📖 Recipe
    • 💬 Comments
    Roasted Broccoli and Cauliflower

    Why I love this Oil-Free Roasted Broccoli and Cauliflower

    • Dietary needs - this recipe is dairy-free, plant-based, oil-free, gluten-free, and sugar-free
    • Easy to make - it's SO easy to make this roasted broccoli and cauliflower recipe, there's just a few simple ingredients
    • Great for meal prep - I make a batch of this broccoli and cauliflower just about every week. I keep it on hand so no matter what I have a vegetable to eat
    • Nutrient dense - everyone knows that vegetables are good for you. But broccoli and cauliflower both boast some special nutritional benefits

    How to roast vegetables without oil

    Use a strategic amount of liquid

    The key to any oil-free cooking is using a strategic amount of liquid (water or broth).

    You need some liquid to prevent the vegetables from burning. But you don't want too much liquid, or else you'll just steam the vegetables instead of roasting them.

    When roasting vegetables oil-free, my tried-and-true method is to rinse the veggies in water and then pat them somewhat dry.

    Rinsing adds the water we need to avoid burning. Patting them somewhat dry prevents pools of water that will steam the vegetables in the oven without browning them.

    The best method to do this is by placing your chopped vegetables in a colander and rinsing them in the sink.

    Avoid sprinkling water on the vegetables after placing them on the tray. I find that this creates pools of water and the vegetables end up too soft.

    Stir only once or twice

    Over stirring will prevent your vegetables from browning.

    Browning will only take place when the vegetables sit undisturbed for a longer period of time.

    Avoid stirring until you see browning on the top or bottom side of your vegetables (depending on if your oven primarily heats from the bottom or top).

    Roasted Broccoli and Cauliflower

    Ingredient Notes

    • Broccoli and Cauliflower: in this recipe I have you roast the broccoli and cauliflower together, but you can very easily make this dish with just one of the two. I do it all the time!
    • Garlic: Fresh garlic is preferable here, but I've made this many times with freeze dried garlic and it ends up just as delicious. Garlic powder also works, but the powder makes the veggies grainy.
    • Red Pepper Flakes: If you don't like spice, you can omit the red pepper flakes. But I find that just a hint of spice adds so much depth to this dish.
    • Salt & Pepper: apply liberally!

    How to Make Roasted Broccoli and Cauliflower

    Step 1. Preheat the oven to 425°F.

    Step 2. Chop the broccoli crowns and cauliflower head into bite-sized pieces and thinly slice the garlic cloves.

    Step 3. Rinse the chopped broccoli and cauliflower under cold water. Pat dry, leaving the veggies slightly damp but not wet.

    Step 4. Place the broccoli and cauliflower on separate baking sheets. Sprinkle the sliced garlic, red pepper flakes, salt, and pepper evenly over the broccoli and cauliflower. Toss lightly.

    Step 5. Place the trays in the oven. Roast for 20-30 minutes (the cauliflower will be closer to 30), stirring every 10 minutes, when you see browning start to occur. Remove when the veggies are slightly browned. Enjoy!

    Roasted Broccoli and Cauliflower

    Serving Suggestions

    I eat this oil-free roasted broccoli and cauliflower with just about anything. It is a great neutral side that pairs well with so many recipes. Here are some of my favorites (all oil-free!)

    Pasta. My lentil bolognese with linguine needs a good side of veggies. Or other bean & pasta dishes like my vegan Cincinnati chili (Skyline!) or vegan spaghetti & meatballs.

    Tofu. Any standalone tofu recipe, like panko crusted tofu or pesto tofu, would pair so well with roasted veg.

    Tacos. Or taco recipes like my go-to tempeh tacos or ever popular mushroom tacos.

    Frequently Asked Questions

    Broccoli & Cauliflower Nutrition

    Both broccoli and cauliflower are in the cruciferous family. Cruciferous veggies like broccoli, cauliflower, kale, or cabbage have some amazing gut-healing and inflammation-fighting properties

    These vegetables contain a phytonutrient that leads to the activation of our immune system. Every time you eat broccoli and cauliflower you promote the unlocking of your immune defense.

    The antioxidants present in broccoli and cauliflower also provide cancer-fighting properties.

    Plus broccoli and cauliflower are filled with fiber, one of the most important nutrients for your health.

    Why aren't the veggies getting brown?

    If you notice your veggies aren't browning, you probably did not dry them enough before roasting. If this is happening, turn your oven up to 450.

    Recipe Prayer

    Lord thank you for giving us food that heals our bodies, food that fights for us like You fight for us. Keep us safe and healthy as we nourish our bodies with Your creation. Amen.

    Related Recipes

    Want more broccoli and cauliflower in your life? I do. Check out these other recipes using those delicious veg:

    • A plate of miso charred broccoli, with a fork, ready to serve.
      Oil-Free Miso Charred Broccoli
    • A platter of Whole Roasted Cauliflower surrounded by roasted vegetables.
      Whole Roasted Cauliflower with Tahini Sauce (Air Fryer & Oven)
    • A plate of rice and sweet and sour cauliflower, garnished with sesame seeds and scallions.
      Sweet & Sour Cauliflower (Oil-Free)
    • A fried cauliflower on a platter, garnished with scallions.
      Plant-Based Fried Cauliflower (Oil-Free)

    Tried this recipe?

    Please leave a review in the comments section below. You can also stay in touch with me on social media by following me on Instagram, Pinterest, and TikTok or by subscribing to my newsletter.

    📖 Recipe

    A plate of roasted broccoli and cauliflower.

    Roasted Broccoli and Cauliflower (Oil-Free)

    This oil-free roasted broccoli and cauliflower is crispy and flavorful. Lightly seasoned with salt and red pepper flakes, this dish will become your new go-to side dish.
    5 from 1 vote
    Print Pin Rate
    Course: Side Dish
    Cuisine: American
    Prep Time: 15 minutes minutes
    Cook Time: 25 minutes minutes
    Total Time: 40 minutes minutes
    Servings: 6
    Calories: 132kcal
    Author: Elizabeth

    Ingredients

    • 3 Medium Broccoli Crowns
    • 1 Head Cauliflower
    • 4 Cloves Garlic
    • 2 Teaspoons Red Pepper Flakes
    • Salt & Pepper to taste

    Instructions

    • Preheat the oven to 425°F.
    • Chop the broccoli crowns and cauliflower head into bite-sized pieces and thinly slice the garlic cloves.
    • Rinse the chopped broccoli and cauliflower under cold water. Pat dry, leaving the veggies slightly damp but not wet.
    • Place the broccoli and cauliflower on separate baking sheets. Sprinkle the sliced garlic, red pepper flakes, salt, and pepper evenly over the broccoli and cauliflower. Toss lightly.
    • Place the trays in the oven. Roast for 20-30 minutes (the cauliflower will be closer to 30), stirring every 10 minutes, when you see browning start to occur. Remove when the veggies are slightly browned. Enjoy!

    Nutrition

    Calories: 132kcal | Carbohydrates: 26g | Protein: 11g | Fat: 1g | Saturated Fat: 0.5g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 0.1g | Sodium: 147mg | Potassium: 1268mg | Fiber: 10g | Sugar: 7g | Vitamin A: 2092IU | Vitamin C: 318mg | Calcium: 170mg | Iron: 3mg

    Nutrition information is an estimate.

    Tried this recipe?I love to see what you make! Tag me on Instagram @elizabeths_table

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      Recipe Rating




    1. Trish

      December 04, 2025 at 10:45 pm

      5 stars
      I am shocked at how well this turned out without oil, the broccoli cooked very quickly and tasted great.

      Reply
      • Elizabeth

        December 05, 2025 at 9:54 am

        Love to hear that Trish! This is one of my favorite recipes that I make all the time - so delightful, even without the oil! So glad you enjoyed!

        Reply

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