- To a medium skillet over medium heat, add ground beef, salt, and pepper.  Cook, stirring occasionally and breaking up the meat as you go, for about 8-10 minutes, or until it is no longer pink. Add garlic and cook for 1 more minute.  Drain excess grease if necessary. 
- To the bowl of a slow cooker, add the cooked ground beef, green pepper, red pepper, onion, frozen hash browns, cheddar cheese soup, sour cream, and Worcestershire sauce. Stir to combine. 
- Cover and cook on high for 2 ½ hours, or low for 4-5 hours. 
- Top with shredded cheese. Cover and cook for 10 more minutes, or until the cheese is melted. 
- Garnish with parsley. Salt and pepper, to taste.