Sheet of greaseproof paper layer in peppers, tomatoes, mushrooms, baby corn, sugar snap peas, some fresh soft herbs like parsley/dill/thyme lay on the fish then fold the paper to make a parcel (pleat the top to allow for steam) tuck the ends under and pop in the oven for 20 minutes serve with baby new potatoes or mash. Each person gets their own packet, you can serve in the paper, this is 'en papilotte' (spelling wrong I think) in recipe books.
Or cook off some onion and garlic, lay on the bottom of a oven dish throw on a bag of raw spinach and mix together. Top with undyed smoked haddock and top that with a slice or two of lemon, cover with foil and oven bake for 20 mins, serve with smooth mash mixed with EL Mayo and plenty of seasoning, serve with roasted veggies like chatenay carrots and BNS.