Once the beef is browned, carefully tip the skillet to pour off any excess fat.
Pour in the beef stock and bring it to a boil. Stir in the pasta, then reduce the heat to medium. Let it simmer for about 10 minutes, or until the pasta is tender and has absorbed most of the liquid, stirring often to prevent sticking.
Finally, stir in the condensed cheddar cheese soup and the picante sauce. Continue to cook, stirring frequently, until the mixture is hot and bubbling through, and the sauce has thickened slightly.