Wash and peel the Russet potato, then dice it into small 1/2-inch cubes for even cooking.
Heat the avocado oil in a large cast-iron or non-stick skillet over medium-high heat.
Add the diced potatoes to the skillet and cook for 8-10 minutes, stirring occasionally, until they are golden brown and tender.
Push the potatoes to the outer edges of the pan and add the ground beef to the center, breaking it apart with a spatula.
Add the diced onion and red bell pepper to the beef, and season the entire pan with sea salt, black pepper, garlic powder, and smoked paprika.
Continue cooking for 5-7 minutes until the beef is fully browned and the vegetables are soft.
In a separate small non-stick pan, fry the egg to your preference, ideally leaving the yolk slightly runny to create a natural sauce.
Transfer the beef and potato hash to a plate, top with the fried egg, and garnish with freshly chopped parsley.