Reading some of your earlier posts it looks like you only had the surgery around a week ago?
I think you need to give yourself a little time to recover and I am wondering why the hospital did not give you instructions on what you should try to eat.
You certainly should not be going hungry and I am wondering how you would go with smoother food like custards, ice creams, jelly.
Also do you have a blender in which you can make smoothies. Just add plenty of liquid and throw in some things for vitamins like fruit and eggs.
As you heal you may find some things from the list on this OCF link.
http://oralcancersupport.org/forums/ubbthreads.php?ubb=showflat&Number=94621#Post94621
Good luck and let us know how you get on.
Gabriele

History Leukoplakia bx 8/2006 SCC floor mouth T3N0M0- Verrucous Carcinoma.
14 hour 0p SCC-Right ND/excision/marginal mandibulectomy 9/2006, 4 teeth removed, flap from wrist, trach-ng 6 days- no chemo/rad.
6 ops and debulking (flap/tongue join) + bx's 2006-2012.
bx Jan 2012 Hyperkeratosis-Epithelial Dysplasia
24cm GIST tumour removed 8/2013. Indefinite Oral Chemo.

1/31/16 passed away peacefully surrounded by family