In a large bowl, mix ground beef, eggs, stuffing, shallots, and BBQ rub. Continue to mix until all ingredients are well incorporated.
Form the mix into a loaf, either on a pan or using the Griddle plate attachment for the NWG (sold separately).
Lightly season the outside of the loaf using the BBQ Rub and add your thermometer into the middle of the loaf.
Add pellets to NWG pellet hopper.
Set NWG to smoker setting at 300F (149C). You can leave the default time as is.
Hit the start button and let NWG go through the ignition process.
Add the loaf to the NWG and smoke until it hits 140F (60C) internal temperature.
Once it comes up to temp, baste the loaf with the BBQ sauce.
Shut the lid and cook until the loaf hits 160F (71C).
Remove loaf from NWG, slice the loaf into thick slices and enjoy!