Pre-heat your oven to 170C (fan) or 180C (conventional)
Wash and prepare the green vegetables and wild garlic
Spread half the butter onto the foil
Season with salt and pepper
Place half the wild garlic leaves onto the butter, then put the fish on top, service side up
Butter the fish and season well
Wrap the leaves around the fish and press into the butter if you can
Top the fish with the remaining wild garlic leaves
Crimp the foil to make an airtight parcel. Try to allow a little space so the fish can steam in the oven
Put the parcel on your baking tray and place in the oven
Meanwhile bring a little water to the boil in a small pan
Add the green vegetables and steam for 5 minutes. Drain and cover till the fish is cooked
Carefully unwrap the fish and tip the juices into the green vegetables. You can add the wild garlic leaves too if you like. Stir to mix
Put the green vegetables into a shallow bowl and top with the fish and a wedge of lemon