A comforting twist on the traditional fish pie, this gratin features a creamy base of tender fish, vegetables and herbs, topped with a golden cauliflower, cheese and breadcrumb crust. No mash needed. A lighter take on a hearty classic. Recipe to be enjoyed as part of a healthy, active lifestyle.
Philly “No Mash” Fish Pie Gratin
- 45min
- Serves 6

150 g red onion
150 g carrot
150 g celery sticks
1 bay leaf
150 g frozen peas
1.5 tbsp plain flour
300 g milk
225 g Philadelphia® Original
750 g mixed fish - any boneless fish will work
1 lemon, zest and juice
600 g cauliflower, trimmed into florets
60 g cheddar cheese, grated
45 g breadcrumbs
8 sage leaves, finely chopped
30 g olive oil
salt and black pepper
30 g olive oil
Chop the red onion, carrot and celery into small diced cubes, then season and cook slowly in a large pan with the bay leaf and half of the butter until soft.
Add the flour and cook for 3-5 minutes, then add the frozen peas and allow to defrost.
Then add the milk and cook for 5 minutes on a low heat. Take off the heat and add the Philadelphia then the fish, chopped sage leaves, lemon zest and juice. Place into a gratin dish.
To prep the cauliflower, blend all the florets with the butter, cheese, breadcrumbs and oil. Season to taste and spoon this mix onto the fish pie.
Cook in an oven at 180 °C for 25 minutes (or longer if you want a darker crunchier topping).