Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Peel the sweet potato and slice it into 1-inch thick rounds to create the 'steaks'.
In a bowl, toss the sweet potato rounds with olive oil, half of the sea salt, and half of the black pepper.
Arrange the sweet potato steaks on the baking sheet and roast for 25-30 minutes, flipping halfway through, until caramelized and tender.
While the potatoes roast, season the chicken breast with the remaining salt and pepper.
Heat a non-stick skillet over medium-high heat and sear the chicken for 6-7 minutes per side until the internal temperature reaches 165°F.
In a small saucepan or microwave-safe dish, melt the ghee with minced garlic, rosemary, and thyme until fragrant.
Plate the roasted sweet potato steaks and the chicken breast, drizzling the garlic-herb ghee generously over the potatoes before serving.