Baked fish with mashed potatoes (easy)

Prepare the puree according to the container instructions using half the butter.

Arrange the fish fillets in a fountain for the oven.

Add the rest of the butter distributed over each fish fillets.Add salt and lemon juice on each steak.

Preheat the oven at 180 ° C.Put the source with the fish by 10-15 mins.

Remove the fish from the oven and serve with the puree.