Do I feed her what I'm eating? Make something just for her? If so, bland and basic or complete and flavorful? Do I keep her somewhat hungry?
My biggest suggestion would be to remember it's not just what you feed her, but how. Examples
It could be fun to put food in a bowl on the floor and tie her hands and tell her if she spills any she will get punished.
Also consider if you want her to eat when you eat so she is free to serve you after, or if you want her to have to sit quietly and watch you eat before she is fed as a show of dominance. (Also this would make it easier to tease her while she eats, if you two are into that idea).
Another thing to consider is intentionally getting more on your plate than you will eat, and when you are finished scraping your "scraps" into a bowl or onto her plate.