Not quite what you're probably looking for, but Tom Bruno's Confessions of a Gourmand, or How to Cook a Dragon is a fantasy story with a foodie MC who views the world through a culinary lens. Worth a read if you want to see how to integrate cuisine with worldbuilding, though IIRC the cuisine itself was not magical.
On the concept, you'll want to decide how much your magic can do, and how much it can't. A general convention is that magic can't endlessly replicate food - or, if it can, it's not properly filling food, just an empty copy that provides no nourishment; the Harry Potter universe, which has pretty lax/freewheeling magic in many respects, even had this restriction. (This is generally to keep magic from getting overpowered; a hero who can just snap their fingers and have a banquet is not only going to ease through a lot of situations, but put every chef, farmer, spice trader, and so forth out of work.) So, what can your magic do? Can it help preserve food? Can it provide heat to cook, perhaps in an "exotic" fashion (as a microwave cooks from within, perhaps magic also cooks differently than regular external heat, making new recipes possible... or maybe seen as a cheap substitute for "real" cooking)? Can it transport spices? Can it create or combine flavors not normally combined in nature - merge meats and herbs on a molecular level, perhaps, or create peculiar hybrid fruits and vegetables? Is there a risk from eating magically-infused foods? Can people be allergic to magic traces in food - wizards, perhaps, or maybe only wizards can eat magically-touched food unaffected, making for the ultimate exotic fare that lay people can only dream of feasting on?
Ultimately, what do you want or need your culinary magic to do in order to create an interesting story? What do you need it to not be able to do?