Baked blue fish like sardines and mackerel are a budget-friendly mediterranean treasure. This high protein dish is rich in omega-3s, fresh, and supports a healthy lower cholesterol family diet.
Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper.
Pat dry sardines and mackerel fillets, then arrange them skin side down on the baking sheet.
In a small bowl, mix breadcrumbs with chopped parsley, minced garlic, salt, and pepper; sprinkle this mixture evenly over the fish.
Drizzle olive oil and squeeze fresh lemon over the fish and breadcrumb topping for zest and moisture.
Bake for 18–22 minutes until fish is flaky and the breadcrumbs are golden; avoid overbaking to ensure moist, delicate texture.