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.
Glazed cod with creamed spinach & mustard mash
Chef’s kiss to whoever first glazed chunky cod with super-savoury Marmite – a genius move that elevates the eating experience. A pinch of nutmeg in the creamed spinach and dollop of mustard in the mash up the ante. Proper posh nosh in under half an hour!
SWK: Source of fibre
SWK: High protein
Plants 2
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Serving size
Ingredients
- 400g potatoes
- 1 tbsp wholegrain mustard (Mustard) (wholegrain mustard (water, mustard seeds, spirit vinegar, mustard flour, mustard bran, pimento), spirit vinegar, water)
- 1 handful of fresh chives
- 2 skinless cod fillets (Fish, Crustaceans, Milk, Molluscs, Mustard, Cereals Containing Gluten)
- 8g Marmite (Barley, Celery, Oats, Rye, Wheat) (Yeast extract (contains BARLEY, WHEAT, OATS, RYE), salt, vegetable juice concentrate, vitamins (thiamin, riboflavin, niacin, vitamin B12 and folic acid), natural flavouring (contains CELERY).)
- 160g baby spinach
- 120g fat-free Greek-style yogurt (Milk) (Skimmed Milk Concentrate, Skimmed Milk, Bacterial Starter Culture)
- ½ tsp ground nutmeg
- 2 carrot
Nutritional Information
Calories: 408
Protein: 37g
Carbs: 57g
Fat: 2.9g
Ingredients
- 800g potatoes
- 2 tbsp wholegrain mustard (Mustard) (wholegrain mustard (water, mustard seeds, spirit vinegar, mustard flour, mustard bran, pimento), spirit vinegar, water)
- 4 carrot
- 1 handful of fresh chives
- 4 skinless cod fillets (Fish, Crustaceans, Milk, Molluscs, Mustard, Cereals Containing Gluten)
- 16g Marmite (Barley, Celery, Oats, Rye, Wheat) (Yeast extract (contains BARLEY, WHEAT, OATS, RYE), salt, vegetable juice concentrate, vitamins (thiamin, riboflavin, niacin, vitamin B12 and folic acid), natural flavouring (contains CELERY).)
- 320g baby spinach
- ½ tsp ground nutmeg
- 240g fat-free Greek-style yogurt (Milk) (Skimmed Milk Concentrate, Skimmed Milk, Bacterial Starter Culture)
Nutritional Information
Calories: 406
Protein: 37g
Carbs: 57g
Fat: 2.9g
Glazed cod with creamed spinach & mustard mash
Chef’s kiss to whoever first glazed chunky cod with super-savoury Marmite – a genius move that elevates the eating experience. A pinch of nutmeg in the creamed spinach and dollop of mustard in the mash up the ante. Proper posh nosh in under half an hour!
Cook time:
25 mins
Cuisine:
British
Food group:
Fish
Allergens: Mustard, Fish, Barley, Celery, Oats, Rye, Wheat, Milk
Cooking Instructions
Before you start
- 2x medium saucepan
- 1x baking tray lined with baking paper
Make your mash
- Heat your oven to 220ºC/fan 200ºC/gas 7.
- Peel the potatoes and cut them into 2cm cubes, then cook in boiling water for 15-18 mins.
- Drain, return to the pan and mash with the mustard and a splash of water, then lightly season.
Prep the carrots and fish
- While the potatoes are boiling, halve the carrots lengthways and slice into ½cm half-moons.
- Put the carrots on a baking tray lined with baking paper and spritz with cooking spray. Lay the cod fillets on the tray and rub with Marmite to make a thin glaze.
Get roasting!
- Roast in the oven and bake for 14-16 mins, until the fish is cooked through and flaking.
Cream the spinach
- At the same time, finely chop the spinach.
- Put a large non-stick saucepan over a medium-high heat and tip in the spinach with a pinch of nutmeg (to taste). Stir to wilt, then add a splash of water and cook for 3-4 mins, until completely wilted.
- Remove from the heat and allow to cool slightly, then lightly season and stir in the yogurt.
Plate up
- Finely chop the chives.
- Dish up the mash with the carrots and creamed spinach. Lay the cod on top of the spinach and scatter over the chives.