Place the first 10 ingredients into the slow cooker.
Cover and cook on low for 6-7 hours.
Uncover and add the beans, corn and ready rice.
Cook an additional 30 minutes.
Remove the pork to a plate and shred with two forks.
Return the shredded pork back into the cooker, stir and heat through.
Serve with flour tortillas and additional ingredients for toppings (optional).
Notes
Store leftovers in an airtight container in the refrigerator for up to 5 days.May be frozen after cooking. Store the contents in an airtight freezer container or freezer bag and freeze for up to 3 months.