Peel the sweet potato and dice it into uniform 1/2-inch cubes to ensure even cooking.
Heat the avocado oil in a large cast-iron or non-stick skillet over medium-high heat.
Add the sweet potato cubes to the skillet and cover with a lid for 5 minutes to steam-soften.
Remove the lid and continue to cook the potatoes for 3-4 minutes, stirring occasionally until they begin to brown.
Add the diced red onion and red bell pepper to the skillet, sautéing for 3 minutes until the onion becomes translucent.
Push the vegetable mixture to the outer edges of the pan and place the ground bison in the center.
Break the bison apart with a spatula and season the entire pan with smoked paprika, garlic powder, sea salt, and black pepper.
Cook for 5-7 minutes, stirring frequently, until the bison is fully browned and the sweet potatoes are fork-tender with crispy edges.
Remove from heat and garnish with chopped fresh parsley before serving warm.