Cheat's fish pie recipe

Name: Cheat's fish pie
Yield: Serves 4
Ingredients: 400g pack frozen fish pie mix; 1 tbsp plain flour; 300g pot fish pie sauce; 400g frozen potato lattices; 400g frozen green beans; 1 tsp olive oil

This 5-ingredient cheat's fish pie recipe is the easiest shortcut to a hearty midweek meal for the family. Using ready made parsley sauce and frozen fish, simply add the fun crispy potato lattice topping, bake and serve with green beans - dinner is served!

See method

Serves 4
5 mins to prepare and 35 mins to cook
408 calories / serving

Shop your ingredients

Tesco Fish Pie Mix 340G
400g pack frozen fish pie mix
£7.25
£21.32/kg
Stockwell & Co. Plain Flour 1.5Kg
Aldi Price Match
1 tbsp plain flour
£0.70
£0.47/kg
Schwartz Fish Pie Wet Sauce For Fish 300G
Any 4 for 3 Clubcard Price - Cheapest Product Free - Selected Cooking Ingredients
Offer valid for delivery from 29/09/2026 until 26/10/2026
300g pot fish pie sauce
£3.00
£10.00/kg
Tesco Potato Waffles 12 Pack 680g
Aldi Price Match
400g frozen potato lattices
£1.39
£2.04/kg
Tesco Haricot Beans In Water 400G
400g frozen green beans
£0.45
£1.88/kg DR.WT
Tesco Olive Oil 250Ml
1 tsp olive oil
£3.10
£12.40/litre

Method

Heat the oven to gas 6, 200°C, fan 180°C. Tip the frozen fish pie into a medium baking dish about 20 x 15cm and 5cm deep. Sprinkle over the flour, toss to coat, then stir in the sauce.
Add a layer of the potato lattices to the top (use the largest, flattest lattices in the bag), overlapping them slightly, to cover the filling. Bake for 30-35 mins until the filling is bubbling, the fish is cooked through, and the potato lattices are crisp. Leave to stand for 5 mins before serving.
Meanwhile, cook the frozen green beans in a pan of salted boiling water for 4-5 mins until tender. Drain well and toss with the oil. Serve alongside the fish pie.