The Ultimate Low-Carb Roasted Cauliflower Mash (Air Fryer) roasts cauliflower florets until lightly golden, then mashes them with softened butter, freshly grated Parmesan, and bright lemon juice and zest. Roasting first gives the mash a depth that plain boiled cauliflower never reaches. It's a 25-minute stand-in for mashed potatoes at 12 g of carbs per serving.
The Ultimate Low-Carb Comfort Food
If you’ve been searching for the ultimate low-carb alternative to mashed potatoes that’s actually delicious, your hunt is over! I am completely obsessed with this Roasted Cauliflower Mash. It’s incredibly creamy, rich with butter and parmesan, and gets a bright, zesty kick from fresh lemon. The best part? This is a lightning-fast air fryer recipe that comes together in about 20 minutes. Whether you’re on a keto diet or just craving a cozy, healthy side dish, this recipe will blow you away.
Ingredients
• 32 oz / 907 g Cauliflower florets
• 1 tsp Olive oil
• 3 oz / 85 g Parmesan, freshly grated
• 4 oz / 113 g Butter, softened
• 1/2 Lemon, juiced
• 1/2 Lemon, zested
• Salt and black pepper, to taste
Instructions
1. Directions
2. Preheat your air fryer to 380°F / 190°C.
3. In the air fryer basket, toss the cauliflower florets with olive oil until evenly coated.
4. Air fry for 20 minutes, shaking the basket halfway through, until the florets are tender and lightly golden.
5. Transfer the hot, roasted cauliflower to a large bowl and mash to your desired consistency.
6. Add the softened butter, grated parmesan, lemon juice, and lemon zest to the bowl.
7. Stir vigorously until the butter and cheese are melted and everything is creamy and well combined.
8. Season generously with salt and pepper to taste and serve immediately.
Nutritional Information
• Nutrition (per serving)
• Calories: 174
• Fat: 5 g
• Fiber: 2 g
• Protein: 8 g
Pro Tips
• For a silky-smooth mash, use a food processor or immersion blender instead of a potato masher. For a more rustic texture, a standard masher is perfect.
• Grate your own block of parmesan. Pre-shredded cheese often contains anti-caking agents that can prevent it from melting into a smooth, creamy consistency.
• Ensure your butter is at room temperature. Cold butter will cool the mash down too quickly and won’t blend in as smoothly.
• Toss 2-3 peeled garlic cloves into the air fryer with the cauliflower. They’ll roast into a sweet, mild flavor that mashes perfectly into the final dish for an extra layer of flavor.
FAQ
Q: How do I make cauliflower mash smooth and creamy
A: For a silky-smooth mash, use a food processor or an immersion blender. The recipe also recommends using freshly grated parmesan and softened butter to ensure a creamy consistency.
Q: Is this roasted cauliflower mash keto-friendly
A: Yes, this recipe is perfect for a keto or low-carb diet. It’s a delicious and healthy alternative to traditional mashed potatoes.
Q: Can I add other flavors to this mash
A: Absolutely. For an extra layer of flavor, try roasting 2-3 peeled garlic cloves in the air fryer along with the cauliflower and mashing them into the final dish.
Q: How long does it take to make this in an air fryer
A: This is a very quick recipe that comes together in about 20 minutes. The cauliflower florets air fry for 20 minutes at 380°F / 190°C until tender.
Pro Tips
- For a silky-smooth mash, use a food processor or immersion blender instead of a potato masher; a standard masher gives a more rustic texture if that's your preference.
- Ensure your butter is at room temperature — cold butter will cool the mash down too quickly and won't blend in as smoothly.
- Grate your own block of Parmesan. Pre-shredded cheese often contains anti-caking agents that prevent it from melting into a smooth, creamy consistency.
- Toss 2-3 peeled garlic cloves into the air fryer with the cauliflower — they roast into a sweet, mild flavor that mashes perfectly into the final dish.
- Air fry the florets at 380°F / 190°C for 20 minutes, shaking the basket halfway through, until they're tender and lightly golden before mashing.
Frequently Asked Questions
How do I get the mash silky smooth?
Use a food processor or immersion blender on the hot roasted cauliflower. A potato masher works too, but leaves a more rustic texture.
Can I roast garlic with the cauliflower?
Yes — add 2-3 peeled cloves to the air fryer basket with the florets. They turn sweet and mild and mash right into the dish for extra depth.
Is this cauliflower mash keto-friendly?
Each of the 4 servings has about 12 g of carbs (2 g of that fiber) with 8 g of protein and 5 g of fat. The creamy element is butter and Parmesan, no milk or flour.
Can I make the mash ahead of time?
Reheat it gently with a little extra butter or a splash of water and stir vigorously to bring the creaminess back. Room-temperature butter blends in much better than cold.
Recipe card below.
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The Ultimate Low-Carb Roasted Cauliflower Mash (Air Fryer)
Ingredients
Method
- Directions
- Preheat your air fryer to 380°F / 190°C.
- In the air fryer basket, toss the cauliflower florets with olive oil until evenly coated.
- Air fry for 20 minutes, shaking the basket halfway through, until the florets are tender and lightly golden.
- Transfer the hot, roasted cauliflower to a large bowl and mash to your desired consistency.
- Add the softened butter, grated parmesan, lemon juice, and lemon zest to the bowl.
- Stir vigorously until the butter and cheese are melted and everything is creamy and well combined.
- Season generously with salt and pepper to taste and serve immediately.
- Grate your own block of parmesan. Pre-shredded cheese often contains anti-caking agents that can prevent it from melting into a smooth, creamy consistency.
- Toss 2-3 peeled garlic cloves into the air fryer with the cauliflower. They'll roast into a sweet, mild flavor that mashes perfectly into the final dish for an extra layer of flavor.
