Here are food items I personally put into my typical diet and that are crohn's friendly for me at least (some fall into both categories). I will add more as they come to me:
High protein:
chicken
salmon
quinoa (a grain)
eggs
greek yogurt
peanut butter
almond butter
turkey
black beans
High calorie:
quinoa
peanut butter
almond butter
avocados
bananas
olive oil
coconut oil