Heat the extra virgin olive oil in a large cast-iron or non-stick skillet over medium-high heat.
Add the diced sweet potatoes to the skillet and cook for 8-10 minutes, stirring occasionally, until tender and golden brown.
Stir in the diced yellow onion and red bell pepper, sautéing for an additional 3-4 minutes until the vegetables have softened.
Push the vegetables to the outer edges of the pan and add the ground beef to the center, breaking it into small crumbles with a wooden spoon.
Season the entire skillet with garlic powder, smoked paprika, sea salt, and black pepper.
Continue to cook, stirring occasionally, until the beef is fully browned and no longer pink.
Add the chopped kale to the skillet and toss for 1-2 minutes until the leaves are bright green and slightly wilted.
Remove from heat and serve immediately as a balanced, one-pan meal.