Mom why are you cooking fish?!
Answers: that's a little on the excessive side , i love seafood but i love variety too . maybe she'll understand that . it's kind of like being a vegetarian , some of them would like to eat something else { meat } but choose not to . i would not like to eat meat every day even though i like it . a good balance of diff foods is essential in my opinion to growing up .
Say mom I love the fish but we cant afford to eat it everyday. Works for me everytime ;]]!
She is just trying to be a good mom. Fish is wonderful for you. She won't take it personal if you tell her not to make it anymore.
Ask her nicely if you can have a steak one night for your dinner.
It needn't need to be steak. (chicken drums, lamb chops, etc)
Probably the easiest thing to do is to take an interest in cooking and ask her if you can make dinner with her then suggest other things than fish. :P
fish is good for you just ask her she may change if you ask her
When you are eating dinner (the fish she made that is...), say to her.."mom, I was thinking that I would love to have (pick a meal) for dinner tomorrow night" See what she says to that. If she say's anything about eating fish, just tell her that you love it and love how she makes it but you kind of get in the mood for other things as well.
By the way...you are so sweet to not want to upset her. My kids and my son's fiance just come right out and tell me yuk mom that is gross, or "i'm not eating that, I hate it" or things to that affect. ha ha ha...luckily though, It does not bother me and I just tell them fine, make yourself something then or eat a sandwich.