Thanks for the link. I am reading the how to's and have a comment. Instead of rewarming the food in a microwave, it is often easier to bring it to room temperature by placing the container in hot water. The food container should be around two cups and the hot water should be in a container at least 4X bigger. This prevents microwave hot spots.

I will have about 5 days between the surgery and my brother being released from the hospital to go shopping and pre-make some food. I won't know if he is going to have a peg until after the surgery.