This oven roasted Spanish Mackerel recipe uses simple ingredients like cilantro, garlic, thyme, lemon, and olive oil. It is a quick and delicious way to prepare Mackerel. Enjoy! Oven Roasted Spanish Mackerel Recipe Type: Entree Cuisine: Mediterranean Author: The Mediterranean Dish Serves: 4-6 Ingredients 2 Wild-caught Spanish mackerel fish, bone in, gutted, cleaned, head and