As far as tomatoes, I found after about 3 weeks into radiation, that I could enjoy raw tomatoes but got vill at cooked, like tomatoe sauce. Also enjoyed pasta with an olive oil based sauce.
Try angil hair pasta with broccoli and shrimp in Olive oil, garlic and white wine. I was able to enjoy that throughout the seven weeks of treatment.
Keep a journal of what (and when) you can eat and what to avoid as it will be of tremendous help to athers down the road.

Hang in there,
Chris

Stage 4 squamous cell tonsil cancer. Two lymph nodes involved surgically removed before source found to be tonsil. Implant radiation right on tonsil, regular mask radiation therapy for two months and a final Implant radiation. All clear confirmed by PET scans for 6 years.