Scrub the Yukon Gold potato and dice it into small 1/2-inch cubes to ensure they cook quickly and evenly.
Heat the extra virgin olive oil in a large cast-iron skillet over medium-high heat until shimmering.
Add the diced potatoes to the skillet and cook, stirring occasionally, until they are golden brown and tender, about 8 to 10 minutes.
Stir in the diced yellow onion and red bell pepper, sautéing for another 3 to 4 minutes until the vegetables soften and become fragrant.
Push the vegetables to the edges of the pan and add the ground beef to the center, breaking it into small crumbles with a spatula.
Season the entire mixture with sea salt, black pepper, garlic powder, and smoked paprika, stirring to combine all ingredients.
Continue cooking for 5 to 7 minutes until the beef is fully browned and the potato edges reach a satisfying crispiness.
Remove the skillet from the heat, garnish with freshly chopped parsley, and serve warm.