Longevity KitchenRecipes

Heart health · Mediterranean

Sheet-Pan Mackerel with White Beans, Peppers & Parsley

Published Updated

A weeknight tray bake with mackerel, white beans, peppers and parsley for heart-supportive protein, fibre and Mediterranean structure.

Ready in

30 min

Meal type

Dinner

Best for

Heart health

Allergy note

Dairy-free

omega-3 richbean + fishsheet-pan dinner

Why it belongs in a longevity kitchen

This is one of those dinners that gets the basic Mediterranean heart-health pattern right without becoming a project, oily fish, legumes, olive oil, vegetables and enough acidity to keep the whole tray lively.

Nutrition principles in this recipe

  • Mackerel brings omega-3-rich protein in a format that still feels like an actual dinner
  • White beans add fibre and more staying power than a fish-and-vegetables plate on its own
  • Peppers, parsley, lemon and olive oil keep the meal bright enough to repeat

Ingredients

  • 2 mackerel fillets
  • 1 red pepper, sliced
  • 1 yellow pepper, sliced
  • 1 small red onion, sliced
  • 1 tin white beans, drained and rinsed
  • 1 garlic clove, grated
  • 1 tsp smoked paprika
  • 1 lemon
  • 2 tbsp capers
  • A small handful of flat-leaf parsley
  • 2 tbsp extra-virgin olive oil
  • Black pepper, sea salt

Method

  1. Heat the oven to 220°C. Toss the peppers, onion and white beans with half the olive oil, the garlic, smoked paprika, salt and pepper on a tray.
  2. Roast for 15 minutes until the peppers start to soften and colour.
  3. Move the vegetables aside, add the mackerel fillets, drizzle with the remaining olive oil and return to the oven for 8 to 10 minutes until the fish is just cooked.
  4. Finish with lemon juice, capers and plenty of parsley, then spoon everything straight from the tray.