Slow Cooker Pineapple Pork Loin 

Season the Pork Loin:
Rub the pork loin with salt and pepper on all sides. Place it in the slow cooker.
Make the Pineapple Sauce:
In a small bowl, combine the crushed pineapple (with juice), brown sugar, soy sauce, minced garlic, Dijon mustard, and ground ginger. Stir until well mixed.
Add to Slow Cooker:
Pour the pineapple mixture over the pork loin in the slow cooker, making sure the pork is well coated with the sauce.
Cook:
Cover the slow cooker and cook on low for 6-8 hours or high for 4-5 hours, until the pork is tender and cooked through.
Rest and Slice:
Once done, remove the pork loin from the slow cooker and let it rest for 10 minutes before slicing.
Serve:
Spoon the pineapple sauce from the slow cooker over the sliced pork. Garnish with fresh cilantro or parsley if desired. Serve with rice or vegetables for a complete meal! 
Enjoy your sweet and savory Slow Cooker Pineapple Pork Loin!