500g skinless fish fillets, such as haddock, cod or hake, cut into goujon-sized pieces
3–4 tbsp plain flour, plus 75g for the batter
200ml cold beer
Lemon wedges, to serve
For the Rosti Potato Cakes
600g waxy potatoes, peeled
1 tablespoon rapeseed oil
Sea salt and ground black pepper
1 tablespoon butter
For the Pea Mash
1 tablespoon butter
200g frozen peas
1 tablespoon extra virgin olive oil
A handful of mint leaves
Method
To make Tuna Fish Cakes, start by draining the canned tuna.
While the rice is cooking, prepare the eel by grilling or frying it.
Put the tomato paste, olives, and butter into a blender or food processor and whizz until smooth.
Put the oats in the blender or food processor, slightly broken up.
Coat the fillets with the butter mixture while grilling.
Heat a large skillet over medium-high heat and add the fish cakes.
Flatten the grated potatoes with a spoon or the back of a fork, and cook over medium heat until golden and crisp. Season well.
Dip in the flour and coat each fishcake. Dip in the egg and then coat with crumbs. Repeat this process until you have 24 fishcakes. Chill the fish cakes for one hour.