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Pesto Crusted Basa and Garlic Butter Sauce

Pesto Crusted Basa and Garlic Butter Sauce

with Spinach Mash and Roasted Carrots
Recipe Development Team
Recipe Development TeamUpdated on January 21, 2026
Calories
640 kcal
Protein
30.7g protein
Total
40 minutes
Difficulty
Medium
Allergens:
  • Wheat
  • Cereals containing gluten
  • Nuts
  • Cashew nuts
  • Milk
  • Fish
  • Sulphites
  • Peanut
  • May contain traces of allergens
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: Wheat, Cereals containing gluten)

30 grams

Basil Pesto

(Contains: Nuts, Cashew nuts, Milk, Peanut, May contain traces of allergens)

2 unit(s)

Basa Fillets

(Contains: Fish)

15 milliliter(s)

Cider Vinegar

(Contains: Sulphites)

10 grams

Vegetable Stock Paste

40 grams

Baby Spinach

Not included in your delivery

75 milliliter(s)

Water for the Sauce

30 grams

Butter for the Sauce

Energy (kJ)2677 kJ
Energy (kcal)640 kcal
Fat26 g
of which saturates10.1 g
Carbohydrate71 g
of which sugars13.1 g
Dietary Fibre12.1 g
Protein30.7 g
Salt2.5 g
Trans Fat0.1 g
Potassium1044.5 mg
Calcium22.1 mg
Iron0.9 mg
Always refer to the product label for the most accurate ingredient and allergen information.
Chopping Board
Baking Tray
Knife
Large Saucepan
Grater
Small Bowl
Spoon
Pan
Colander

Instructions

1

Preheat your oven to 220°C/200°C fan/gas mark 7. Put a large saucepan of water with 0.5 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.

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.

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. 

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's cooked when opaque in the middle.

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.

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. 

Sitr the spinach through the mash, a handful at a time until wilted and piping hot, 1-2 mins. 

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-crusted fish, with some calling it delicious and a family favourite.
  • Ease of prep: Some found the sauce time-consuming to make, with a few suggesting preparing it in advance.
  • Suggestions: Consider adding extra vegetables or using cod or salmon instead of basa for personal preference.
  • Portions: A few customers mentioned needing more potatoes and spinach, especially when serving three people.
  • Spinach mash: While some loved the spinach in the mash, others found it made the potatoes watery and bland.
AI-generated from customer reviews

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