Greeneyes (and always feel free to use the Search function up top), some of the building blocks of a "real food, high protein, good fat" diet for PALS include eggs, nut butters, dairy (cheese, ice cream, cottage cheese, puddings, milk) or nut milk equivalents, deboned fish like salmon, tender or pureed meats, produce that may exclude kernels/seeds/tough skins, (cooked and canned may go down more easily) included, and products made from whole grain flour.
To make food easier to swallow and increase consumption generally, there are a lot of options, like using lots of syrup, cream, sauce. Some spices may be good, others not.
Hydration is equally important.