
Heat oil in a large pan over medium heat.
Rough chop the jalapenos and onions and cook them down about 20 minutes, until they begin to caramelize.
Rough chop the filet mignon (or other steak) and season with salt and pepper. Add to the pan and cook about 5-6 minutes, stirring often, until just cooked through.
Add salsa con queso and stir.
Scoop into lightly toasted rolls and serve with extra salsa con queso, if desired.