What verb do you use to order at a restaurant

I usually say "I'll have the..." Or maybe "I'd like the..." Depending on the vibe sometimes it's just a blunt noun: "brat, onions, and a warsteiner dunkel" at the deutches Haus for example. That doesn't work everywhere obviously.

The reason for this question is that my wife invariably says "I'll do your..." As in "I'll do your eggplant risotto." "I'll do your whopper junior, no mayonnaise." I think this is completely nonsensical and have sternly and consistently maintained as such. You can't "do" a plate of food. The "your" also bothers me a little but I would let it slide if not for the "do" part. This has led to no small degree of tension over the years and decades and I would appreciate some neutral outside contributions.