If she is food aggressive, then fix her food before you put her bowl down first. Keep your hands at a distance, and don't bug her until after she walks away from the bowl. Don't leave food down all the time, feed her on scheduled times, keep to the schedule. If you are hesitant to have her in the same room when you are fixing the food, then toss a few treats for her into another room, close that door, fix her food and put it on the floor and then open the door to let her out.
I have two kittens that growl all the time while they are eating. One is just food aggressive, the other (older) turned out to have an abscessed tooth that was pulled.
Also please be patient with answers on the board. We are getting so big that no one can keep up with all the posts. Most of us try and check in as much as possible, but this is a busy time of year for us as well.