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Creamy Leek & Mustard Chicken

Creamy Leek & Mustard Chicken

with Mashed Potato
4.5(4.9K)Review summary
Niamh Kavanagh
Niamh KavanaghUpdated on July 24, 2025
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Calories
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Protein
35.5g protein
Preparation Time
35 minutes
Difficulty
Easy
Allergens:
  • Milk
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts and wheat.
Serving amount

2

potato

1

carrot

1 bag

silverbeet

1

leek

1 clove

garlic

1 packet

chicken breast

1 packet

light cooking cream

(Contains: Milk;)

½ packet

wholegrain mustard

½ sachet

chicken-style stock powder

Not included in your delivery

olive oil

40 g

butter

(Contains: Milk;)

2 tbs

milk

(Contains: Milk;)

¼ tsp

salt

per serving
Energy (kJ)3226 kJ
Fat38.8 g
of which saturates7.3 g
Carbohydrate63.4 g
of which sugars20.8 g
Protein35.5 g
Sodium1136 mg
The average adult daily energy intake is 8700 kJ
Medium Pan
Lid
Large Non-Stick Pan

Cooking Steps

1
1

Bring a medium saucepan of salted water to the boil. Peel the potato and cut into bite-sized chunks. Thinly slice the carrot into rounds. Roughly chop the silverbeet. Thinly slice the leek. Finely chop the garlic.

2
2

Cook the potato in the boiling water until easily pierced with a knife, 10-15 minutes. Drain and return to the saucepan. Add the butter, milk and the salt, then mash until smooth. Cover to keep warm.

3
3

While the potato is cooking, heat a drizzle of olive oil in a large frying pan over a medium-high heat. Cook the carrot until almost tender, 3 minutes. Add the silverbeet and cook until wilted, 2-3 minutes. Add the garlic and cook until fragrant, 1 minute. Transfer to a bowl and cover to keep warm.

4
4

Place your hand flat on top of each chicken breast and use a sharp knife to slice through horizontally to make two thin steaks. Return the frying pan to a medium-high heat with a drizzle of olive oil. Season the chicken with salt and pepper on both sides. Cook the chicken until cooked through, 3-5 minutes each side (depending on thickness). Transfer to a plate to rest.

TIP: The chicken is cooked through when it's no longer pink inside.

5
5

Return the frying pan to a medium-high heat with a drizzle of olive oil. Cook the leek until softened, 4-5 minutes. Reduce the heat to low, add the light cooking cream, wholegrain mustard (see ingredients) and chicken stock powder (see ingredients) and stir to combine. Simmer until slightly reduced, 1-2 minutes. Add any chicken resting juices and season to taste.

6
6

Divide the mashed potato between plates and top with the garlic veggies and chicken. Spoon over the creamy leek and mustard sauce to serve.

Customer reviews

Review summary

Updated on Feb 2026
  • Flavour: The creamy leek and mustard sauce is a standout, with many calling it "restaurant quality" and "to die for".
  • Ease of prep: Quick and simple to make, though some found multiple steps made it take longer than expected.
  • Suggestions: Some recommend using less leek in the sauce, adding mushrooms, or swapping silverbeet for broccoli or green beans.
  • Leftovers: Reheats well the next day, with many enjoying leftovers for lunch.
  • Portions: Several mentioned needing more potatoes for the mash, especially when serving four people.
AI-generated from customer reviews