In a large pan, stir-fry the garlic and onion in oil over medium-high heat for about 1-minute or until aromatic.
Add beef pan and cook until browned, stirring occasionally. Transfer to the slow cooker.
Add your beef stock, stewed tomato sauce, soy sauce, bay leaves, and Worcestershire sauce. Cover your slow cooker with lid, then cook for 4 1⁄2 hours.
Add your potatoes to slow cooker during the last 1 1⁄2 hours of cook time. Season to taste with salt and pepper.
Transfer your beef stew into a serving bowl, and garnish with chopped green onions.
Serve and Enjoy!