Brown ground beef in a skillet with seasoning salt. Drain.
While beef is browning, cut the Velveeta into cubes and throw in crockpot on low. Add the Rotel.
Once beef is done and drained, add to cheese mixture and stir to blend. Leave on low, stirring every 10 minutes or so, until cheese is completely melted. Serve with tortilla chips, corn chips, pretzels. I rarely have leftovers and lots of times make a double batch. It does refrigerate and reheat nicely.