Meal plans for (low carb/sodium & low fiber/high calorie)

I'm trying to put together two different meal plans for my parents. I'd be so grateful if I was pointed in the right direction.

One has no colon and digestive issues. Also, b/c of the lack of colon everything runs through them.
*Can't eat very fibrous foods
*Too much bread/pasta causes him pain
*Can't eat much tomato sauce.
*Steak is hard on digestive system
* I think dairy may bother them too.
* A lot of processed foods bother them (i guess b/c of additives?)


The other was recently diagnosed with heart failure despite being really healthy (active lifestyle, walked 2hrs daily, eats healthy, doesn't smoke/drink) briskly walks the dog 2 hrs a day, stays active.)
* Needs diet low in sodium. I believe the doctor said no more than 1000 mg a day
* Eats low carb (they eat chia and flax) I'm trying to convince them to reintroduce oatmeal into their life.
* Minus cheese they don't eat dairy really (I know must cheeses have a fair amount of sodium though.)
* The cholesterol needs to be low as well.

Suggestions for meals? Snacks?