Warm the pulled pork in a large skillet over medium heat with the barbecue sauce, stirring occasionally until heated through, about 8-10 minutes.
While the pork heats, prepare your mashed potatoes according to package directions or warm your cooked rice.
Divide the mashed potatoes or rice among 6 bowls as the base layer.
Top each bowl generously with the warm pulled pork.
Add shredded cheddar cheese over the hot pork so it melts slightly.
Finish each bowl with a dollop of sour cream, crumbled bacon, sliced green onions, and jalapeƱos if desired. Serve immediately.