Trim any hard fat or silver skin from the roast.
Season the roast with BBQ Rub and add your thermometer to the thickest part of the roast.
Add the carrots, onions, potatoes, celery, garlic, and rosemary to an oven safe dish.
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 roast to the NWG, shut lid and smoke until internal temperatures hit 165- 170F (73-76).
Remove roast from the NWG and place roast on the veggies in the oven safe dish.
Pour beef stock over the roast and veggies.
Cover dish tightly with tin foil and place dish back in the NWG.
Continue cooking on the Smoker setting 300F (149C) until the internal temperature hits 205-210F (96-99C) and it is probing tender.
Let the roast rest for 20 minutes.
Remove roast from dish and slice or shred roast.
Plate the roast up with the veggies and enjoy!