Those things are past good! They are exceptional! Not really any recipes per se, but more of process and imagination. In it's purest form they are simple fare. Buy a log/roll of breakfast sausage (any flavor). The better the brand the better - lots of people prefer Jimmy Dean or Bob Evans, but others prefer other brands or homemade. Carefully cut the wrapper off. Sprinkle with your favorite rub and put it in the smoker at your normal smoking temps and cook to an IT of 170F. Usually takes 3 or 4 hours for me.
That is a fatty at it's purest form. Now the fun comes in. Use your imagination as to what to stuff one with. It's obvious that one would not stuff one with lemons, but just about anything else is game. I prefer sharp cheese with green onions and either fresh jalapenos or banana peppers. I'm gonna make a Bacon Explosion or two this weekend. That is basically a bacon stuffed fatty wrapped in bacon. Place your sausage log on a sheet of plastic wrap and just pat or roll out your sausage log to a rectangle about 1/4" to 3'8" thick. Place your stuffing down the middle and using the plastic wrap roll it back up into a log. Pinch seal the seams and the ends so you don't lose any goodness to leakage. Sprinkle your favorite rub on and cook to an IT of 170F. Some will wrap bacon around it before putting on the smoker. I've seen stuffing of flavored cream cheese, mushrooms, hard boiled eggs, scrambled eggs, link sausage, chicken tenders, tater tots and cheese, scrambled eggs and tater tots, pineapple and fontina, pear and sharp cheddar, salami and cheese, ham, small boiled potatoes, strips of duck breast, oysters, shrimp, scallops, catfish - so only your imagination is the limitation.
The Bard of Hot Aire