Preheat the smoker to 300 degrees F.
In a cast iron skillet break up the ground beef and season with the Spicy BBQ Rub (or similar).
Place in the smoker, close the lid, and let cook for about 25-30 minutes (breaking up and stirring meat as necessary).
Pull the beef off once browned and drain any excess grease.
Reduce the heat of the smoker to 225 degrees F.
Push the seasoned meat to the side of the pan and add in the Velveeta, pepper jack cheese, diced tomatoes(with liquid), green chiles, poblano peppers, red pepper flakes, and milk. Do not stir
Place back in the smoker and let smoke for about 30 minutes.
Stir until all of the ingredients are combined and then continue to smoke for about 45 minutes longer until hot throughout. (stir occasionally).
Serve warm with chips andor soft pretzels and enjoy.
Optional: you can reserve a little bit of the pepper jack cheese to add to the top for a garnish along with chopped tomatoes and fresh poblano peppers, too.