Keto Herb-Crusted Mackerel with Sweet Potato Fries

Chef Brainy
What Started it all:
Mackerel, Sweet potato, dried herbs (oregano, thyme, basil), air fryer

Enjoy this flavorful and keto-friendly dish of herb-crusted mackerel with crispy sweet potato fries! It’s a quick and easy recipe that’s perfect for a healthy dinner for four.


  • 4 mackerel fillets
  • 2 medium sweet potatoes, cut into fries
  • 1 teaspoon dried oregano
  • 1 teaspoon dried thyme
  • 1 teaspoon dried basil
  • Salt and pepper to taste
  • Cooking spray (for air fryer)


  1. 1. Preheat the air fryer to 400°F (200°C).
  2. 2. In a small bowl, mix together the dried oregano, thyme, basil, salt, and pepper.
  3. 3. Pat the mackerel fillets dry with a paper towel and then rub the herb mixture on both sides of the fillets.
  4. 4. Place the sweet potato fries in a single layer in the air fryer basket, spray with cooking spray, and air fry for 15-20 minutes, shaking the basket occasionally, until crispy and golden.
  5. 5. Place the herb-crusted mackerel fillets in the air fryer basket and air fry for 8-10 minutes, or until the fish is cooked through and the coating is crispy.

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