The best air fryer Brussels sprouts recipe—perfect for frozen or fresh—uses a simple, flavorful seasoning and produces buttery, crisp results. Naturally low in carbs and keto-friendly, this preparation is a crowd-pleaser whether you follow a low-carb diet or not. Everything Bagel seasoning coats the sprouts for a bold, savory finish.

Keto Brussels Sprouts Recipe

If you don’t follow a keto diet, this recipe is still for you. These Brussels sprouts are naturally low in carbs and made with familiar ingredients—no special substitutes. Sprouts are nutritious on their own, and finishing them with butter and a savory seasoning makes them irresistible. The higher fat from the butter also makes this an ideal keto side.

Are Brussels Sprouts Keto?

Yes. A cup of Brussels sprouts contains roughly 3 grams of net carbs, making them a great vegetable choice for low-carb or keto plans. To keep them keto-friendly, choose low-carb seasonings and toppings.

Is it Brussel or Brussels Sprouts?

The correct term is Brussels sprouts, named after the city of Brussels in Belgium. Many people say “Brussel sprouts,” but Brussels is the traditional and widely accepted name.

Air Fryer Brussels Sprouts: Frozen or Fresh

This method works for both frozen and fresh sprouts, though preparation and texture differ:

• Frozen: Thaw and pat dry before seasoning. You can leave them whole. Expect a softer center and a less crisp exterior—still tasty and convenient, often more budget-friendly.
• Fresh: Trim and halve the sprouts, then blanch briefly before air frying. Fresh sprouts yield a firmer interior and a crisper exterior with better texture.

Seasoning for Air Fryer Brussels Sprouts

The seasoning used here combines crushed almonds, grated Parmesan, and Everything Bagel seasoning. Almonds add crunch and a touch of elegance for holiday or dinner-party sides. Melted butter helps the seasonings adhere and gives a rich flavor. Everything Bagel seasoning—made from dried onion, garlic, sesame and poppy seeds, and salt—is an excellent all-purpose topper for roasted or air-fried sprouts. If you don’t have it, see the substitution suggestion below.

Do I Need to Wash Them?

For frozen sprouts, washing is unnecessary. For fresh, rinse in a large bowl of cold water, trim any tough stems, drain in a colander, and pat dry before proceeding.

How to Pick Brussels Sprouts at the Store

Choose bright green, firm heads that feel heavy for their size. Avoid very large sprouts, which can taste bitter; smaller sprouts are generally sweeter and more tender.

Tips for Air Frying Brussels Sprouts

• Make sure sprouts are well prepped and dry so they crisp up.
• Have ingredients measured and ready (mise en place).
• Avoid overcrowding the air fryer basket; cook in batches if needed.
• Keep finished batches covered and warm while you finish the rest.

How to Store Leftovers

Store leftovers in an airtight container in the refrigerator for up to three days. Note that refrigeration will change the texture—sprouts lose some crispness but retain flavor. Reheat for best results.

Best Way to Reheat the Brussels Sprout Side Dish

To recover some crispness, spread sprouts on a sheet pan and reheat in a hot oven until warmed and crisped. For a quick option, microwave until heated through—texture will be softer.

Making our keto-approved air fryer Brussels sprouts (frozen or fresh)

Servings: 8 – Serving size: ⅔ cup (90g) – Prep time: 5 minutes

Cook time: 15 minutes – Total time: 20 minutes

Main Nutrition Facts

Calories: 75 | Fat: 4g | Net Carbs: 3g | Protein: 4g

Ingredients

• 24 oz Brussels sprouts, fresh or frozen
• 2 tablespoons butter, melted
• ¼ cup grated Parmesan cheese
• ¼ cup crushed almonds (optional)
• 2 tablespoons Everything Bagel seasoning (or substitute: sea salt to taste, 1 tablespoon black sesame seeds, 1 tablespoon white sesame seeds, 1 teaspoon garlic powder, 1 teaspoon onion powder)

Note: Many Everything Bagel blends include sea salt—adjust added salt accordingly.

Instructions

1. Frozen: Microwave the unopened bag on high for 3–4 minutes, let stand 1 minute, open the bag and drain excess water. Pat dry.
2. Fresh: Bring 2 cups water to a simmer in a saucepan, add trimmed sprouts, cover and cook over medium heat 8–10 minutes. Drain, let cool slightly, then halve the sprouts.
3. In a bowl combine sprouts, melted butter, Parmesan, crushed almonds (if using), and Everything Bagel seasoning. Toss until evenly coated.
4. Transfer sprouts to the air fryer basket in a single layer (work in batches if needed). Cook at 375–400°F for 12–15 minutes, shaking or stirring once or twice, until golden and crisp on the outside.
5. Serve hot.

Oven Method: If you don’t have an air fryer, spread the seasoned sprouts on a baking sheet and roast at 375°F, stirring occasionally, until golden and crisp—about 20 minutes.

More Amazing Keto Side Dish Recipes

• Loaded Cauliflower Au Gratin
• Air Fryer Avocado Fries
• Keto Best Friends Casserole
• Keto Crunchy Shrimp

Air Fryer Brussels Sprouts with the Best Seasoning, Keto Friendly

Yield:
8 servings

Prep Time:
5 minutes

Cook Time:
15 minutes

Total Time:
20 minutes

Buttery, crispy Brussels sprouts with a bold seasoning—made quickly in the air fryer and naturally keto-friendly.

Ingredients

• 680g Brussels sprouts (24oz)
• 2 tablespoons butter, melted
• 30g grated Parmesan cheese (¼ cup)
• 30g crushed almonds (¼ cup) optional
• 2 tablespoons Everything Bagel seasoning (or use sea salt to taste, 1 tbsp black sesame seeds, 1 tbsp white sesame seeds, 1 tsp garlic powder, 1 tsp onion powder)

Instructions

1. If using frozen sprouts, microwave the unopened bag 3–4 minutes on high, let stand 1 minute, open and drain excess water.
2. If using fresh sprouts, simmer trimmed sprouts in 2 cups water, covered, for 8–10 minutes. Drain and halve.
3. Toss sprouts with melted butter, Parmesan, crushed almonds, and Everything Bagel seasoning until evenly coated.
4. Arrange in the air fryer basket in a single layer and cook 12–15 minutes, turning or shaking once, until golden and crisp.
5. Serve immediately.

Notes

Oven Method: Roast at 375°F on a baking sheet, stirring occasionally, until golden and crisp. Salt: Everything Bagel seasoning often contains salt—adjust additional salt as needed.

Nutrition Information:

Yield: 8
Serving Size: 1

Amount Per Serving:
Calories: 75
Total Fat: 4g
Carbohydrates: 6g
Net Carbohydrates: 3g
Fiber: 3g
Protein: 4g

Nutrition facts are estimates; actual values vary by brands and portion sizes.