Easiest to consume high calorie meal, according to 4-hour body:
Macaroni, durum whole wheat, mixed with water packed canned tuna, and fat-free turkey/bean chili.
Mix the macaroni with a can of tuna and as much chili as you like, microwave it for one minute on high. Add a little milk or butter with the macaroni. Have this for breakfast, lunch and dinner if you can manage it.