Preheat oven to 400°F and line a baking sheet with parchment paper.
Peel and cube the sweet potato into half-inch pieces, then toss with 1 teaspoon of avocado oil and a pinch of salt.
Roast the sweet potatoes for 20 minutes, flipping halfway through, until they are tender and golden.
While potatoes roast, heat the remaining teaspoon of avocado oil in a large cast-iron skillet over medium-high heat.
Add the ground bison to the skillet, breaking it into small crumbles with a spatula, and cook until fully browned.
Add the diced yellow onion and red bell pepper to the skillet with the bison, sautéing for 5 minutes until the vegetables soften.
Stir in the smoked paprika, garlic powder, sea salt, and black pepper to evenly coat the meat and vegetables.
Fold the roasted sweet potatoes into the skillet and cook for an additional 2 minutes to allow the flavors to meld.
Garnish the hash with chopped fresh parsley and serve hot.