In a large cast iron skillet on medium low, combine shredded chicken and taco seasoning.
Add diced jalapeños, diced onions, and cream cheese.
Heat through so that all the ingredients combine into a creamy chicken filling. Remove from the heat and stir in the pepperjack cheese.
Preheat the oven to 425℉ on convection heat, if possible.
Place one corn tortilla on a flat surface and spread 2 tablespoons of filling down the middle of the tortilla. Tightly roll the tortilla and place the taquito into a 13x9 baking dish. Continue until all the filling is used, approximately 16 taquitos.
Using an olive oil spray or pastry brush, generously coat the outside of the tortilla with oil.
Bake the taquitos for 25-30 minutes, or until browning and crispy on the outside.
Serve immediately with salsa, guacamole, pico de gallo, and mexican crema.
These taquitos are best served immediately, but can be stored, covered, in the refrigerator for up to 4 days. Reheat in the microwave for 2 minutes or in a 350℉ oven for 10 minutes.