Mustard Free Herb-Baked Mackerel with Lemon and Olive Oil
Mackerel is one of those deeply flavorful, omega-rich fish that deserves far more time in the spotlight, and this herb-baked version is a genuinely beautiful way to cook it. A warm spice rub of turmeric, smoked paprika, and black pepper gives each fillet a golden, aromatic crust, while thin lemon rounds and sliced garlic roast alongside and perfume the whole pan. The finishing scatter of fresh parsley, dill, and thyme adds a burst of color and brightness the moment it hits the hot fish. For anyone navigating a mustard-free kitchen, this recipe is a natural fit — the bold, layered flavor comes entirely from herbs, spices, and good olive oil, with no condiments or marinades that might sneak in hidden mustard. It's the kind of dish that looks impressive enough for company but comes together with minimal prep and a single baking sheet. Serve it straight from the oven with extra lemon wedges and something simple on the side, and dinner is genuinely done.
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Learn more →Ingredients
4 servings
- 4 mackerel fillets (about 6 oz each), skin-on
- 3 tbsp extra-virgin olive oil, divided
- 3 cloves garlic, thinly sliced
- 1 tsp ground turmeric
- ½ tsp ground black pepper
- ¾ tsp fine sea salt
- ½ tsp smoked paprika
- 1 lemon, thinly sliced into rounds
- ¼ cup fresh flat-leaf parsley, roughly chopped
- 2 tbsp fresh dill, roughly chopped
- 1 tbsp fresh thyme leaves
For serving
- lemon wedges, for serving (optional)
Instructions
- 1
Preheat the oven to 425°F (220°C). Line a rimmed baking sheet with parchment paper and drizzle 1 tbsp of the olive oil evenly over the surface.
- 2
In a small bowl, stir together the turmeric, smoked paprika, black pepper, and salt. Pat the mackerel fillets dry with paper towels, then rub both sides of each fillet with the spice mixture.
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