Pem - Surprised no responses thus far, my impression was that weird stuff seems to go hand in hand with the immediate post-op period. It even made it onto my official hospital discharge instructions. First, the usual "boring" stuff like checking temperature, weight, lifting restrictions, etc. Then, right there in the middle, as if a usual everyday thing: "Expect vivid dreams". I sure had them, though, so guess that's why they put it on there.
Anyway, back to your question, my food percerptions were also way off. I think I had the opposite reaction, though, everything seemed bland. I hated almost all foods, and combined with difficulty swallowing, mealtime was quite the chore for me for at least 2 weeks.
One of the weird things for me was walking on grass. I felt like I was a toddler or something at first, I noticed every little unevenness in my steps, like an irregular tuft of grass would be enough to make me lose my balance and topple me over. It didn't and I persisted, but just felt uneasy for several days. I was restricted to the hospital bed the first four days due to my pacemaker, maybe that had something to do with it, but I'd been up and walking inside several days before I tried it on grass, so still didn't make much sense. Fortunately, I had a 2 1/2 year old with me most of the time saying "Daddy, come on!" so that helped take my mind off it...