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Pesto Crusted Sea Bass and Garlic Butter Sauce

Pesto Crusted Sea Bass and Garlic Butter Sauce

with Mashed Potatoes and Roasted Carrots
Mimi Morley
Mimi MorleyUpdated on March 05, 2026
Calories
660 kcal
Protein
26g protein
Total
40 minutes
Difficulty
Medium
Allergens:
  • Cereals containing gluten
  • Milk
  • Fish
  • Sulphites
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
serving amount

3 unit(s)

Carrot

450 grams

Potatoes

1 unit(s)

Echalion Shallot

1 unit(s)

Garlic Clove

25 grams

Breadcrumbs

(Contains: Cereals containing gluten)

32 grams

Pesto

(Contains: Milk)

2 unit(s)

Sea Bass Fillets

(Contains: Fish)

15 milliliter(s)

Cider Vinegar

(Contains: Sulphites)

10 grams

Vegetable Stock Paste

Not included in your delivery

75 milliliter(s)

Water for the Sauce

30 grams

Butter for the Sauce

Energy (kJ)2763 kJ
Energy (kcal)660 kcal
Fat30 g
of which saturates11.7 g
Carbohydrate74.6 g
of which sugars15.1 g
Dietary Fibre11.2 g
Protein26 g
Salt2.6 g
Always refer to the product label for the most accurate ingredient and allergen information.
Baking Tray
Large Saucepan
Garlic Press
Small Bowl
Baking Paper
Pan
Potato Masher
Colander

Instructions

Prep the Carrots
1

Preheat your oven to 220°C/200°C fan/gas mark 7. Put a large saucepan of water with 1/2 tsp salt on to boil for the potatoes.

Meanwhile, trim the carrots, then halve lengthways (no need to peel). Chop into roughly 1cm wide, 5cm long batons.

Pop the carrots onto a large baking tray. Drizzle with oil, season with salt and pepper, then toss to coat. Spread out in a single layer.

Boil the Potatoes
2

When the oven is hot, roast the carrots on the top shelf until tender, 20-25 mins. Turn halfway through.

Meanwhile, chop the potatoes into 2cm chunks (peel first if you prefer).

When your pan of water is boiling, add the potatoes and cook until you can easily slip a knife through, 15-20 mins.

Pesto Crumb Time
3

While the veg cooks, halve, peel and chop the shallot into small pieces. Peel and grate the garlic (or use a garlic press).

Pop the breadcrumbs and pesto into a small bowl. Drizzle in a little olive oil and mix together. 

Ready, Steady, Bake
4

Lay the sea bass, skin-side down, onto another lined baking tray. Season with salt and pepper. 

Spoon the pesto crumb evenly over the fish, pressing it down with the back of the spoon.

Pop the sea bass on the middle shelf of your oven until cooked through, 12-15 mins. IMPORTANT: Wash your hands and equipment after handling raw fish. It is cooked when opaque in the middle.

Make the Garlic Butter Sauce
5

Meanwhile, heat a drizzle of oil in a medium frying pan on medium heat.

Once hot, add the shallot and stir-fry until softened, 4-5 mins. Stir in the garlic and cook for 30 secs.

Add the cider vinegar and allow it to evaporate, 1-2 mins.

Pour in the water for the sauce (see ingredients for amount) and veg stock paste, then bring to the boil and simmer until reduced by half, 2-3 mins.

Vigorously stir in the butter (see pantry for amount) until melted, then take off the heat.

Finish and Serve
6

Once the potatoes are cooked, drain in a colander and return to the pan, off the heat.

Add a knob of butter and a splash of milk (if you have any) and mash until smooth. Season with salt and pepper.

Serve the sea bass with the garlic butter sauce spooned over and the mash and roasted carrots alongside.

Enjoy!

Customer reviews

Review summary

Updated on Feb 2026
  • Flavour: Many enjoyed the pesto crust and garlic butter combination, though some found the pesto overpowering with the delicate fish.
  • Ease of prep: Reviewers found this recipe quick and easy to prepare, with one noting it was "easy to cook".
  • Suggestions: Consider reducing the amount of pesto for a more balanced flavour; some diners suggested adding green vegetables to complete the meal.
  • Portions: Several customers mentioned the fish portions were smaller than expected, with some pieces being particularly thin or uneven.
AI-generated from customer reviews

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