
Mackerel is one of those underrated fish that rewards you with bold, rich flavor and a beautifully flaky texture when it's treated right. A fragrant blend of turmeric, smoked paprika, and black pepper coats each skin-on fillet before it hits a hot oven, building a warm, aromatic crust that smells absolutely incredible as it bakes. Sliced garlic and lemon rounds roast right alongside the fish, softening and caramelizing into something almost jammy, while a generous drizzle of extra-virgin olive oil keeps everything moist and luscious. The whole thing comes together on a single parchment-lined baking sheet, which means minimal cleanup and maximum flavor. Fresh parsley, dill, and thyme go on straight out of the oven, so their brightness cuts right through the richness of the fish. For anyone navigating a red meat allergy, seafood-based dinners like this one are a natural go-to — and this recipe proves they don't have to be boring or plain. Finish with a squeeze of lemon and you've got a restaurant-worthy plate that took almost no effort at all.
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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.
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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