My fav was a really rich (and calorie laden) vanilla ice cream, with three scoops of soy or whey based protein powder, every kind of fresh fruit that was in the store, liquid vitamin supplements added to the mix, and then two cans of whatever liquid food was around ensure etc. It was palatable, vitamin and protein rich, and calorie laden. The alternative every other day was a vegetable mix, again every fresh vegetable that was in the store mixed with protein powders etc. Significantly less tasty but with vitamins and minerals not available in the fruits. Put down three of these a day, plus my PEG bag of Ensure 2 times a day and I was stable weight-wise.