What are the speakers mainly discussing?

M：Hi, Jane.Mind if I eat lunch with you?
W：No, Mr.Green, not at all.
M：Thanks, I just heard you major in nutrition and you’ve got quite a bit of experience from working in the cafeteria, so I wonder if you would be interested in a small project we are doing this term.
W：What is the project all about?
M：More and more students have been deciding not to buy meals from here and we want to attract them back, so, I want to know what students like.Your experience would be helpful to us.And, of course I’d like to hear some of your own ideas.
W：Well, if the menus were changed, then maybe I wouldn’t have to listen to so much criticism.You know I have taken several nutrition classes, and everyone there sees me when I serve food here.So they always complain to me about the food.
M：That makes you perfect for the job.Would you be interested?
W：I am not sure.What sort of changes are you thinking of?
M：I’d like to make some changes in the way we prepare our food.For example, just look at what we had to choose from today.You got a fried hamburger dipped in oil and I got fried chicken.They both contain too much fat.
W：But you’d better not get rid of them.They are many people’s favourites.
M：Well, we can certainly keep them but we need to give people who are healthily conscious some other choices.For example we could also prepare chicken without the fatty skin, and served on some rice with a light sauce.Do you think that would appeal to the students?
W：Well, I like fat.But you are right, you’d better find out what other people think.Oh, sorry, I’ve got back to work.I’d like to know more.I’ll drop by your office later.
M：OK, see you then.