Mediterranean Sea Bass with Pesto Pasta

Mediterranean Sea Bass with Pesto Pasta

Sustainably sourced sea bass is the taste of summer, especially when paired with Mediterranean flavours: plump black olives, juicy tomatoes and peppery rocket. We serve it atop warm penne, coated in herby basil pesto.

Prep in 10 6 plants Low sat fat

Serving size

Cook time: 30 mins
Cuisine: Mediterranean
Food group: Fish
Allergens: Sulphites, Fish

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Cooking Instructions

The protein cooking time listed in this recipe has been updated.

As of December 2025, we’ve revised cooking times for all our proteins to reflect improved food safety guidance.

Check out the latest recommended times in our Cooking Guidelines.

  1. Preheat the oven to 240C / fan 220C / gas mark 8. Dice the pepper into 2cm squares. Cut the onion into 2cm pieces. Place in an ovenproof dish and toss with 1 tsp oil, a pinch of sea salt and black pepper. Bake for 10 mins, until softening.
  2. Roughly chop or crush the garlic. Halve the tomatoes. After 10 mins of roasting, add the tomatoes, garlic and olives to the tray. Bake for another 10-12 mins.
  3. Bring a medium saucepan filled with salted hot water to a boil. Add the penne and boil for 7-8 mins, until cooked, then drain. Return to the saucepan and stir through the pesto. Season with sea salt and black pepper.
  4. Season the sea bass with sea salt and black pepper. Heat a large frying pan with 1/2 tbsp oil on medium heat. Add the sea bass, skin-side down, and cook for 2-3 mins. Flip and cook for another 2-3 mins, until cooked through.
  5. Add a small splash of water to the roasted veg dish and gently mix. Season lightly with sea salt and black pepper.
  6. Serve the pasta topped with the roasted veg. Drizzle over any leftover juices from the dish. Place the sea bass on top. Garnish with the rocket and a drizzle of vinegar.

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