Very filling, lowest calorie and most satisfying is my boyfriend's hard dick.
However, lacking that opportunity, sweet potato is much better for you than a regular white potato.
I call an enormous BS on the need for animal protein. Not true. And the worst are the saturated fats from pork chops, sausage and bacon. Much preferable is a roast pork loin, thinly sliced.
Lacking the enjoyment for a roast/boiled/grilled skinless, boneless chicken breast, try either of these two favorite recipes.
http://www.theguardian.com/lifeandstyle/2013/aug/27/vietnamese-lemongrass-chicken-recipe
http://thaifood.about.com/od/thaicookingessentials/r/Thai-Basil-Chicken-Stir-Fry-Easy.htm
And these recipes can be made even healthier and lower-calorie by converting them into an Asian-style salad by serving them over a wedge of iceberg lettuce, grated carrot, thinly-sliced cucumber, chopped cilantro and a splash of Newman's low-cal asian ginger dressing with a dusting of red pepper flakes.