He will wipe surfaces with Clorox wipes, which are proven to remove peanut protein. He'll run the dishes through the dishwasher in the suite kitchen. He can prepare his food on a plate.
There are a lot of great suggestions here!
He has to take his suit and several dress shirts, so he may only take a hanging bag with his toiletries at the foot of it. So I wonder about how much he can take with him. Especially already prepared food. Maybe we just need to make site he takes another checked bag. I'm not sure about sending already prepared food in it though. Does that concern anyone else?
We tend to travel very lightly food-wise as a family and tend to just buy what we need when we get somewhere, so I'm not very familiar with how prepared food travels.
We'll have to test the hummus if he likes that idea. Maybe with a plastic knife? He doesn't like sesame on buns, but I don't think he's allergic. He would live that tapenade hummus.
He had a Sunbutter bar once. I'll talk with him about those options.
Not that I can expect he will be lucky enough to find MSF products there, but how would a corn dog (I live those) keep? I find they get soggy. If you've got a way Mookie, please share. Could be useful elsewhere!
Okay, for the banana sandwiches, See the very first confessional post.

I adore a banana and Sunbutter wrap.

but how would that (or slices) keep for several hours? I never send that for lunch because I worry about the banana getting yucky. (Same with avocado. I would love to use avocado in school day sandwiches, but u worry about the avocado.)
Much to ponder. Thanks everyone!! Keep ideas coming!