On my pre-op diet when I got sick of the little bit of meat, teeny potato and green veg, I got a bit more inventive. Sounds very much like you are on the same prep diet as me but doubkle check the ingredients I list and make sure you are allowed them too!
Had a stir fry (use little splashes of boiling water in the wok / pan instead of oil and keep it moving. I added prawns and the allowed amount of rice and made a "sauce" with soy sauce, sweetner and taragon.
Another favourite was a pasta salad. Used allowable pasta with chopped chicken, various cooked and cooled veg (your choice) and then I used part of my allowable fat free natural yoghurt and seasoning to make a sauce. Serve with green leaves (try all sorts of dif ones - baby spinach in it makes it lovely! and balsalmic as dressing).
Hope thats helpful.