Mackerel Casserole

Directions

1. 1
   Ask fishmonger to remove the head and backbone from the fish. Sprinkle mackerel with salt and pepper and grill on both sides for a few minutes.
2. 2
   Put butter in a saucepan; add vegetables and cook for about 5 minutes, stirring frequently.
3. 3
   Add tomato puree, sherry, pepper and salt.
4. 4
   Arrange vegetables in casserole and put mackerel on top.
5. 5
   Sprinkle each fish with paprika.
6. 6
   Cover with lid and cook in gas oven on gas mark 4 (350°) for about 15 minutes.