help me lj hive mind

On Thursday, GM and I are going to spend a long weekend with his just-out-of-hospital-immuno-compromised brother. GM gets to play nursing assistant while I get to scrub the house, mow the lawn and make food.

I've trudged through the Food Safety class at Mission College, so I've got the basics down, but if anyone has advice on cooking for the elderly or immuno-compromised, I'd be glad to hear it. Any suggestions on foods I can leave in the freezer are double-helpful.