Does it mean simply that you heated it up in your home?
Or is it more complex, as in you prepared the ingredients and then the whole meal?
I saw a commercial for Hamburger Helper promoting it as an "easy and fast home cooked meal" ... but I would not consider any box-mix food a "home cooked meal." Sure you have to cook the meat, but then you just dump in the box of crap stir.
It's amazing how people don't hold themselves to the standards they set for others.