A review is in. And the main diner who concerned me, did not get sick. Yay! Actually she sent me a very nice email thanking me for dinner and remarking that she could not remember the last time she was eating the same thing everyone else ate.
Once I found a recipe (thank you o great internets) for the main course that was limited to the limited list of approved foods, I was good. The dessert was the result of an experiment I did a week earlier, looking to see what happens when you do certain things to fruit. I'm sad gelatin was off the list there are things I could have done with fruit juices and fruit. No matter. She liked it and since Roland commented here recently, I'll take it that the food didn't kill him either.