Mix the lemon pepper, onion, salt and garlic in a bowl. Massage the mixture onto the pork loin coating both sides. Pour the cup of water into the bottom of the slow cooker. Place the pork loin into the water. Cook on low for 6-8 hours.
Recipe by Couponing to Disney at https://www.couponingtodisney.com/slow-cooker-lemon-garlic-pork-tenderloin/