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    Home » Recipes » Side Dishes

    Roasted Frozen Cauliflower

    by Oscar Chimenti, Last Modified: June 27, 2023 This post may contain affiliate or sponsored links. See the Disclosure Policy linked in my footer.

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    Jump to Recipe Print Recipe

    Enjoy crispy, golden perfection with this Roasted Frozen Cauliflower recipe! Made in the oven or air fryer, this simple yet delightful dish transforms frozen cauliflower into a savory sensation.

    Roasted cauliflower in a white bowl. this recipe
    Jump To:
    • Why you'll love this roasted frozen cauliflower recipe
    • Ingredients Used
    • Steps by step instructions
    • Other recipes using cauliflower you might enjoy
    • Recipe tips
    • Storage
    • Recipe variations
    • Frequently asked questions
    • Roasted Frozen Cauliflower

    Achieve tender insides and a satisfying crunch on the outside with minimal effort. Customize with your preferred seasonings and spices to elevate the flavors. Perfect as a side, healthy snack, or appetizer. Get ready to savor every delicious bite of this roasted frozen cauliflower creation!

    Why you'll love this roasted frozen cauliflower recipe

    • Quick and Easy Preparation: This recipe allows you to make a delicious dish using frozen cauliflower florets, saving you time on cutting and prepping fresh cauliflower. It's a convenient option for a quick and hassle-free meal.
    • Delicious Roasted Flavor: Roasting frozen cauliflower in the oven brings out its natural sweetness and adds a delightful caramelized flavor. The high heat helps to achieve a crispy texture on the outside while keeping the inside tender.
    • Versatility: Roasted frozen cauliflower is a versatile dish that can be enjoyed on its own as a side or incorporated into various recipes. You can use it as a base for grain bowls, stir-fries, salads, or even as a topping for pizzas and flatbreads.
    • Health Benefits: Cauliflower is packed with essential nutrients and is a great source of vitamins C and K, fiber, and antioxidants. By roasting it, you retain many of these nutrients, making it a nutritious addition to your diet.
    • Customizable Seasonings: This recipe provides the opportunity to experiment with different seasonings and spices. You can use garlic powder, curry powder, lemon juice, salt, and olive oil, among others, to enhance the flavors according to your taste preferences.
    Roasted cauliflower in a white bowl.

    Ingredients Used

    This recipe combines frozen cauliflower with olive oil, paprika, salt, garlic powder, and onion powder for a flavorful and easy roasted cauliflower dish.

    ingredients used for this recipe.
    • Frozen Cauliflower: The main ingredient of the recipe, frozen cauliflower is convenient and retains its nutritional value, offering a neutral base for the flavors to develop.
    • Olive Oil: Used for roasting, olive oil adds moisture, enhances the texture, and contributes a rich, savory taste to the cauliflower.
    • Paprika: A spice derived from ground dried peppers, paprika provides a mild, smoky flavor and a vibrant reddish color to the dish.
    • Salt: Essential for seasoning, salt enhances the overall taste and brings out the natural flavors of cauliflower.
    • Garlic Powder: Made from dehydrated garlic cloves, garlic powder adds a robust and slightly pungent flavor to the dish, enhancing the roasted cauliflower's savory profile.
    • Onion Powder: Onion powder lends a sweet and savory taste to the roasted cauliflower, complementing the other flavors in the dish.

    See the recipe card for quantities.

    Steps by step instructions

    How to make the roasted frozen cauliflower in the oven and air fryer?

    Oven Method

    Here are the steps to follow to make oven roasted frozen cauliflower.

    STEP 1: Preheat your oven to 425°F (220°C).

    STEP 2: In a large mixing bowl, combine the frozen cauliflower florets, olive oil, paprika, salt, garlic powder, and onion powder. Toss well to ensure the cauliflower is evenly coated with the seasonings.

    STEP 3: Spread the seasoned cauliflower florets in a single layer on a baking sheet or sheet pan lined with parchment paper. Place the baking sheet in the preheated oven and roast frozen cauliflower for 25-30 minutes, or until the cauliflower is golden brown and crispy on the edges, tossing once halfway through cooking.

    • STEP 4: Once the oven roasted cauliflower is done to your desired level of crispiness, remove the cauliflower from the oven. Serve the roasted frozen cauliflower as a side dish or use it in your favorite recipes.
    Roasted cauliflower in a white bowl.

    Air Fryer Method

    STEP 1: Preheat your air fryer to 400°F (200°C) for a few minutes.

    STEP 2: In a large mixing bowl, combine the frozen cauliflower florets, olive oil, paprika, salt, garlic powder, and onion powder. Toss well to ensure the cauliflower is evenly coated with the seasonings.

    STEP 3: Place the seasoned cauliflower florets in the air fryer basket in a single layer, ensuring they are not overcrowded.

    STEP 4: Cook the cauliflower in the air fryer for approximately 15-20 minutes, shaking the basket or flipping the florets halfway through cooking to ensure even browning.

    Once the cauliflower is crispy and golden brown, remove it from the air fryer. Serve the roasted frozen cauliflower as a side dish or use it in various recipes.

    roasted cauliflower in an air fryer basket with a serving spoon.

    Other recipes using cauliflower you might enjoy

    • Low Carb Cauliflower Soup
    • Cheesy Cauliflower Mash
    • Loaded Cauliflower Nachos
    • Air Fryer Cheesy Cauliflower Balls
    • Roasted Cauliflower with a Tahini Cilantro Dressing

    Recipe tips

    Here are two tips on making the best roasted frozen cauliflower ever:

    • Don't Overcrowd the Baking Sheet or Air Fryer Basket: To achieve the best results, make sure to spread the seasoned cauliflower florets in a single layer, whether you're using the oven or air fryer method.
    • Add a Burst of Fresh Flavor: While the seasonings listed in the recipe provide great flavor, you can take your roasted frozen cauliflower to the next level by adding a burst of fresh flavor after it's done roasting. Once the cauliflower is out of the oven or air fryer, squeeze fresh lemon juice over the top and sprinkle some freshly chopped herbs like parsley, cilantro, or basil. The acidity from the lemon juice will brighten the flavors, while the herbs will add a refreshing and aromatic element to the dish.

    By following these tips, you can enhance the flavor, texture, and appearance of your roasted frozen cauliflower, resulting in a delicious and satisfying dish. Enjoy!

    Storage

    • Allow the roasted cauliflower to cool completely at room temperature before storing. This helps prevent condensation, which can make the cauliflower soggy.
    • Transfer the cooled roasted cauliflower to an airtight container or a zip-top bag. Make sure to remove any excess air from the bag before sealing it tightly. Alternatively, you can use airtight food storage containers.
    • Place the container or bag of roasted cauliflower in the refrigerator. It can be stored in the fridge for up to 3-4 days.
    • When you're ready to enjoy the leftovers, you can either eat them cold or reheat them. To reheat, preheat your oven to 350°F (175°C), spread the cauliflower on a baking sheet, and warm it in the oven for about 10-15 minutes until heated through. Alternatively, you can reheat the cauliflower in a microwave-safe dish in the microwave, using short intervals and stirring in between to ensure even heating.

    It's worth noting that reheated cauliflower may not be as crispy as when it was freshly roasted, but it can still be enjoyable. Discard any leftover cauliflower that has been left at room temperature for more than 2 hours to ensure food safety.

    By storing the roasted cauliflower properly in the refrigerator, you can enjoy it for a few days and incorporate it into meals or salads as desired.

    Recipe variations

    Here are some variations you can make with roasted cauliflower:

    • Cheesy Cauliflower Bites: After roasting the frozen cauliflower, sprinkle grated Parmesan or your favorite cheese over the top. Return the cauliflower to the oven or air fryer for a few minutes until the cheese melts and forms a golden crust.
    • Spicy Buffalo Cauliflower: Toss the roasted cauliflower with a low-carb buffalo sauce, such as a mixture of hot sauce and melted butter or a keto-friendly buffalo sauce. Return the cauliflower to the oven or air fryer for a few minutes to allow the sauce to coat and slightly caramelize.
    • Lemon Garlic Cauliflower: Squeeze fresh lemon juice over the roasted cauliflower and sprinkle it with minced garlic, lemon zest, and a drizzle of olive oil. Toss gently to coat and return it to the oven or air fryer for a couple of minutes to infuse the flavors.
    • Asian-inspired Sesame Cauliflower: Prepare a sesame sauce using ingredients such as soy sauce (or tamari for gluten-free), sesame oil, minced ginger, and a touch of sweetener like erythritol or a low-carb alternative. Toss the roasted cauliflower in the sesame sauce, then sprinkle with sesame seeds for added crunch and flavor.
    • Mediterranean Cauliflower Salad: Allow the roasted cauliflower to cool slightly, then combine it with diced cucumbers, cherry tomatoes, red onions, feta cheese, Kalamata olives, and a teaspoon or drizzle of extra-virgin olive oil. Add fresh herbs like parsley or dill for an extra burst of freshness.

    These variations offer different flavor profiles while keeping the dish low-carb. Feel free to get creative and adjust the seasonings to suit your taste preferences and dietary needs. Enjoy exploring these delicious options!

    Roasted cauliflower in a white bowl.

    Frequently asked questions

    Can I use fresh cauliflower or thaw frozen cauliflower instead of frozen cauliflower for this recipe?

    Yes, you can absolutely use fresh cauliflower instead of frozen cauliflower. Simply cut the fresh cauliflower into florets and proceed with the recipe as directed. Adjust the roasting time as needed since fresh cauliflower may cook faster than frozen cauliflower.

    Can I use other vegetables along with the cauliflower in this recipe?

    Yes, you can certainly combine cauliflower with other vegetables for an oven roasted medley. Vegetables like broccoli, Brussels sprouts, carrots, bell peppers, or zucchini can work well. Just ensure that the vegetables you choose have similar cooking times to achieve even roasting.

    Can I season the roasted frozen cauliflower with other spices and herbs?

    Yes, feel free to experiment with different spices and herbs to customize the flavor of your roasted cauliflower. You can try adding cumin, chili powder, smoked paprika, rosemary, thyme, or any other seasonings that you enjoy.

    Roasted cauliflower in a white bowl.

    Roasted Frozen Cauliflower

    Oscar
    Enjoy crispy, golden perfection with this Roasted Frozen Cauliflower recipe! Made in the oven or air fryer, this simple yet delightful dish transforms frozen cauliflower into a savory sensation.
    5 from 34 votes
    Print Pin This Recipe
    Prep Time : 5 minutes mins
    Cook Time : 30 minutes mins
    Total Time : 35 minutes mins
    Course : Appetizer, Side Dish
    Cuisine : American
    Diet : Diabetic, Gluten Free, Vegan, Vegetarian
    Servings : 5 people
    Calories : 114

    Equipment

    • Baking Sheet
    • Parchment Paper
    • Air Fryer if using
    • Large Glass Mixing Bowl

    Nutrition

    Calories: 114kcalCarbohydrates: 4gProtein: 2gFat: 11gFiber: 2gSugar: 1g

    Ingredients
      

    • 3 cups frozen cauliflower
    • ¼ cup olive oil
    • 1 teaspoon paprika
    • ¼ teaspoon salt
    • ½ teaspoon garlic powder
    • ½ teaspoon onion powder
    **New** I Hacked Diabetes recipe bookCheck out Low Carb & Diabetes Comfort Food!

    Instructions
     

    • Preheat the oven to 425°F
    • In a large mixing bowl combine the frozen cauliflower with the remaining ingredients.
      3 cups frozen cauliflower, ¼ cup olive oil, 1 teaspoon paprika, ¼ teaspoon salt, ½ teaspoon garlic powder, ½ teaspoon onion powder
    • Spread out evenly onto a parchment-lined baking sheet and bake for 25-3o minutes. Once roasted to your desired doneness and crispiness, remove from oven and enjoy.
    • If using the air fryer method follow the same instructions above and air fry at 400°F for 15-20 minutes, shaking the air fryer basket half way.

    Notes

    Recipe Tips:
    • Don't Overcrowd the Baking Sheet or Air Fryer Basket: To achieve the best results, make sure to spread the seasoned cauliflower florets in a single layer, whether you're using the oven or air fryer method.
    • Add a Burst of Fresh Flavor: Once the cauliflower is out of the oven or air fryer, squeeze fresh lemon juice over the top and sprinkle some freshly chopped herbs like parsley, cilantro, or basil.

    This recipe card provides the basic details to make this recipe. For more information, questions or variations please review the content above the recipe card.

    Updates and Revisions

    If conflicting information between the video and recipe card, the recipe card will always have the most up to date information, ingredients and instructions.

    Click here to add your own private notes.

    Nutritional Information

    All nutritional information is based on third-party calculations and should be considered estimates. Actual nutritional content will vary with brands used, measuring methods, portion sizes and more.

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    Food safety

    • Don't leave food sitting out at room temperature for extended periods
    • Never leave cooked food unattended
    • Use oils with high smoking point to avoid harmful compounds
    • Always have good ventilation when using a gas stove

    See more food guidelines

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    roasted cauliflower in an air fryer basket with a serving spoon.