A laryngectomy is the partial or complete surgical removal of the larynx, usually as a treatment for cancer of the larynx. It may be complete (total) or partial. The type of surgery you have will depend upon the location and extent of the tumor within your larynx.
I'm going to go technical on you here so bear with me. If you can lower the temperature of you mac and cheese below 6 degrees celcius under 4 hours from oven hot (a feat that requires a blast chiller) you can safely store your food for 4 days and eat it cold, 5 to six days if you reheat it up to atleast 65 degrees. The unsafe zone is between 52 and 8 degrees where bacterie multiply the fastest.
The expiration date is a couple weeks away but I'm sure if I left it in there for a couple weeks after it had been opened, it'd no longer be good. On my fat free cream cheese, it says keep only ten days after opening, even though it doesn't expire for 3 weeks. That's more what I'm looking for but with cottage cheese.