A zesty quick soy, ginger and lime sauce and delicious marinated onions make this the most tender, and delicious slow cooker pork loin you'll ever have!
Pat pork loin dry with paper towel to remove excess moisture. Sprinkle with salt and pepper on all sides. Add olive oil to pan, and sear pork loin for 5 minutes on each side. Remove from heat.
Add sliced onions to slow cooker, with pork loin on top. Pour marinade over pork loin.
Cook on low for 4-6 hours, or until pork reaches 165 degrees internally.