Sounds like there is a deeper layer here: it seems that she resents that she has to do things she doesn’t enjoy, and that she feels it’s [whine] Not Fair! [/whine] that you enjoy the tasks you do. She is complaining not about a disparity in effort, but in a disparity of fun vs. aggravation.
Forgive me, but this seems immature to me. However, opinions of strangers on the Internet is not going to help resolve this. There are tasks to be done. I suggest you both find some way to evaluate them that you both can agree on. This is the tricky part. I think it should be relatively objective, in terms of effort (either financial cost or time required) but the relative gegree of "fun"of a task may have to be factored in; then split them up in a manner that roughly balances out according to that.
If she insists that shopping and cooking are hobbies of yours and not tasks for the common good of the household, then she should not expect to benefit from them, and you should do these exclusively for yourself. However, that would imply that you do them only during your “personal” time, rather than when you are expected to do household work.
FWIW, I know a few men whose wifes resent the time they spend doing house maintenance things like lawn mowing and repairs, because they enjoy it. Often they try to deduct time doing these chores from time that the husbands would like to use for fun “guy-type” entertainment, like watching a game, or going our with friends. Talk about not being appreciated.