Spray 3 to 4 quart slow cooker with cooking spray. Place pork in slow cooker; sprinkle with taco seasoning mix. Cover; cook on Low heat setting 7 to 9 hours or until pork pulls apart easily with fork.
Remove pork from slow cooker; shred pork. Stir into liquid in slow cooker. Stir in pineapple and lime juice.
To serve, divide pork among taco shells (about ¼ cup/50 mL each), and top with remaining ingredients.
Use bottled lime juice from the grocery section of the supermarket; it's more economical than using fresh.
When fresh pineapple is in season and budget friendly, use it instead of the canned pineapple.
