Turn on slow cooker to Medium. Heat Olive Oil in heavy pan on the stovetop, over medium high heat. Season Pork with Salt & Pepper. Brown Pork on each side for 3 minutes. Add the onions and cook until they begin to brown and caramelize.
Remove pork from the pan and place it in the slow cooker. Add 2 cups of water to the onions remaining in the pan, stirring to loosen up all the brownings from the meat and onions. Add onions and liquid to the slow cooker. Add remaining vegetables, bouillon and salsa to the slow cooker, and cover. Cook (on medium heat) for six hours.
Remove meat from slow cooker and shred or cut into bite sized pieces, then add back to soup.
Serve soup with a dollop of sour cream or your favorite toppings. |