Heat some smoked (preferably undyed) haddock in the oven for 10 minutes.
Meanwhile chop the spring onions and cherry tomatoes.
Separate the eggs.
Combine the yolks with the spring onions, tomatoes, fresh herbs and the double cream.
Whisk the egg whites till fluffy. Flake the fish into a bowl, gently combine with the egg yolks and egg whites.
Heat some butter in a saucepan, add the mixture and cook for a few minutes, then top with grated cheddar and transfer to the grill till bubbling and golden.