Preheat your oven to 200°C.
Boil the peeled potatoes until tender, drain, and mash roughly.
Mix mashed potatoes with drained fish, herbs, cream cheese, and seasoning.
Shape the mixture into cakes and chill in the fridge.
Toss sweet potato fries in oil.
Bake sweet potato fries on a tray for 10 minutes.
Crush puffed rice cereal into crumbs using a freezer bag.
Coat fish cakes in flour, then egg, then crushed cereal.
Place fish cakes on a greased baking tray and coat with oil.
Bake everything together for 20 minutes, turning halfway through until golden.
Serve fish cakes warm with sweet potato fries.