Vary up your food - try foods you haven't tried before. Combine foods.
Add FAT to your foods, the most healthy macromolecule for you right now.
Eat dried fruits if those help stimulate your appetite.
Drink liquid calories.
If you're even thinking about food, it's "mental hunger" as Tabitha Farrar calls it. So eat. Eat any time you think of food.
Recovery can be tough for people if they find themselves feeling too full as well, so limit fiber intake. Eat more processed and calorically-dense food rather than less processed food. Never overstuff, just get comfortably full.