Preheat the oven to 425°F for roasting the sweet potatoes and asparagus.
Peel and cut the sweet potato into 1/2-inch thick rounds, and trim the asparagus ends.
Lightly coat the sweet potato rounds and asparagus with 1 teaspoon of olive oil, and season with salt and pepper to taste.
Spread the sweet potatoes on a baking sheet and roast in the oven for about 20 minutes, turning halfway through, until they are tender and slightly crispy.
In the meantime, pat the chicken breast dry. Season both sides with salt and pepper.
Heat a non-stick skillet over medium-high heat and add the remaining teaspoon of olive oil.
Place the chicken breast in the skillet and pan-sear for about 5-6 minutes on each side until the exterior is crispy and the internal temperature reaches 165°F.
When the sweet potatoes are nearly done, add the asparagus to the baking sheet and roast for an additional 5-7 minutes.
Plate the chicken with a side of roasted sweet potatoes and asparagus. Serve immediately.