This quick and easy mackerel recipe is bursting with protein, omega 3s and Vitamin C, plus tastes of delicious Mediterranean flavors, AND it's made in 20 minutes or less! Canned mackerel is fresh, mild and so good for you.
Preheat oven to 350F. In a large skillet over medium-high heat, sauté the onions in olive oil until soft, about 3 minutes. Add the garlic and cook until aromatic, about 1 minute. Add the crushed tomatoes, olives, capers, paprika, and season with salt and pepper to taste. Stir to combine and cook until heated through, about 2 minutes.
Meanwhile, in one large baking dish or 4 small personal dishes (I recommend these), arrange the mackerel filets. Divide the tomato sauce mixture evenly over the fish.
Roast for 8-10 minutes until the fish is cooked through. Remove from the oven and leave to rest.
Squeeze fresh lemon juice over the roasted fish and garnish with parsley. Serve and enjoy!