Mix the picante sauce and taco seasoning together - if you have picky kids that don't like "chunks" in their sauce, just put it in the blender for a couple of whirls.
Place chicken in crockpot, pour over sauce mixture and cook for about 5 - 6 hours on low...shred the chicken and cook for one more hour.
Prepare biscuits according to package directions. Split open and pile on the taco chicken, add toppings and serve.