Most fish is great if it's wrapped up in a foil package with lemon juice and herbs and oven-baked until it's flaking. Takes about 15-20mins. Tarragon and parsley are good herbs for white fish, I really like oven baked salmon with lemon juice, chilli, garlic and mixed herbs. I tend to serve it simply with salad but new potatoes do work well with fish.
Oven baking is a less smelly way of cooking fish too, fresh fish shouldn't smell but it can leave an interesting smell in the kitchen.
Simple is best with fish, mackerel is a really tasty oily fish and cheaper than tuna and salmon. Only fresh tuna has omega 3's, tinned doesn't (if you were thinking of using tinned).
Kippers are very cheap if you have the stomach for them, nice on toast with scrambled eggs.
If you don't like fish much, ground flaxseed or flaxseed oil (also known as linseeds) will provide you with omega 3's. Dollop into your breakfast or gulp down a spoonful of oil, tastes a little bit minging but washes down well with a mouthful of orange juice. Just don't burp for 30mins after ;)
