I don't know too much about recipes for Diabetics but I went on a little search for you and found recipes for the following at
American Diabetes Services:
Black Eyed Peas
Braised Veal Shanks
Grandmom's Chop Suey
Spicy Meatball Sandwiches
I also found a couple desert recipes you might like
here:
Carrot Cake
Lime Cheesecake
Fudge
Good luck with the birthday party and let us know how it goes!