hi mandazzle. how helpful/flexible is your nutritionist? if it is easier to eat earlier in the day, can they help you pack in the majority of your needed calories during breakfast, day time snacks, and lunch? that way if you need to restrict later in the day while you're home, it's not detrimental?
is it any easier to supplement with liquid calories, like milkshakes and smoothies? sometimes after the hospital you can be sick of those.
are you open to trying foreign foods, or foods that are unusual for you? one time when i was younger i kept myself out of the hospital by making all foods from afghanistan safe. there was one restaurant in my city that served afghani foods. i don't know exactly why or how i made that work in my head, but i did. i realize that's the sort of thinking that you're probably trying to get away from, (ie, "safe" foods) but i tend to think it's okay to use some of your own tendencies to help get through a rough time.
i have to say i feel like a bit of a hypocrite handing out advice right now, since i'm struggling right now too. keep working hard, believe you can get better, and don't forget to reward and acknowledge all your small triumphs.
i hope you'll be feeling lots better soon.