My children eat fish

Of course, it's not their favourite meal, but here's three ways (all very easy) that the children won't moan when I put fish in front of them.  Which I do.  At least once a week.  Because I'm mean.

Creamed Salmon (or tuna) On Toast

Essentially you make a bechamel sauce - heat a fat, whisk in a flour until smooth, slowly add warm milk until a thick cream sauce happens - and season with salt, pepper, etc.  Add your flaked canned fish, serve over toast.  You can add peas if you like.

Breaded Fish

Shake those pieces of fish in a shake-n-bake coating and bake them in the oven.

Maple Salmon

I marinate the fish in a marinade of garlic, ginger, soy sauce, maple syrup and then bake.