Combine cumin, oregano, and salt in a small bowl.
Place pork in a 3 1/2-qt.
Sprinkle pork on all sides with spice mixture.
Credit: Jennifer Davick; Styling: Lydia DeGaris Pursell
Combine beer, chipotle chiles, lime juice, and adobo sauce.
Pour mixture over pork.
Cover and cook on High for 6 to 8 hours or until pork is tender.
Remove pork from slow cooker; shred with 2 forks.
Combine shredded pork and 1/2 cup cooking liquid; toss well.
Layer tortilla chips on bottom of platter; spoon rice and beans over chips.
Add meat and toppings.
Serve with lime wedges.
