I just did my first two fatties today, one was a breakfast fattie, and I hard boild some eggs, sliced them up and laid them out on the sausage with some shredded cheese before I rolled it up... Here the finished product, even got a little smoke ring after 3 hours. I used Hickory chunks from Walmart.
I make a lot of Scotch eggs, which is basically the same thing as a 1 egg individual fattie made into a ball, rolled in bread crumbs and fried or baked.
Next time, I'll make a dozen smoked Scotch eggs, I can get 6 out of a 1lb. chub. I make them low(er) fat, by mixing one 1lb. chub of hot pork sausage, with 1 lb. of lean ground turkey.
My other fattie, I did on a whim, I make up a quick batch of stove top stuffing, put half of it in a 1 lb. chub of unseasoned ground turkey mixed with one egg, rolled it up, sprinkled a little kosher salt and fresh ground pepper and stuck next to the pork one... Came out tasty, and I made a little peppered cream gravy to drizzle on the slices for dinner. It was so good, It never got in front of the camera.