Preheat your oven to 400°F and line a baking sheet with parchment paper.
Peel and dice the sweet potato into 1/2-inch cubes.
In a bowl, toss the sweet potato cubes with 0.5 tbsp of olive oil, smoked paprika, sea salt, and black pepper.
Spread the sweet potatoes in a single layer on the baking sheet and roast for 20-25 minutes until golden and tender.
Season the chicken breast with garlic powder and a small pinch of additional salt.
Heat the remaining 0.5 tbsp of olive oil in a skillet over medium-high heat.
Sear the chicken for 5-7 minutes per side until the internal temperature reaches 165°F.
During the last 2 minutes of cooking, brush the chicken breast generously with the sugar-free barbecue sauce to create a sticky glaze.
While the chicken finishes, steam the green beans for 4-5 minutes until they are bright green and crisp-tender.
Plate the glazed chicken alongside the roasted sweet potatoes and steamed green beans for a clean, balanced meal.