Slice the chicken sausage into half-inch rounds and dice the sweet potato into small, uniform cubes.
Heat the avocado oil in a large cast-iron skillet over medium-high heat until shimmering.
Add the sausage rounds to the skillet and pan-fry for 3-4 minutes until golden brown and crispy on both sides.
Remove the sausage from the pan and set aside, then add the sweet potato cubes to the remaining oil in the skillet.
Sauté the potatoes for 8-10 minutes, stirring occasionally, until tender and slightly caramelized on the edges.
Stir in the diced red bell pepper and red onion, cooking for another 3 minutes until the vegetables are softened.
Add the chopped kale, sea salt, black pepper, smoked paprika, and garlic powder, tossing until the kale is wilted and bright green.
Return the sausage to the skillet, toss everything together to combine the flavors, and serve warm.