Preheat oven to 425°F (220°C) and line a baking sheet with parchment paper.
Cut sweet potatoes into cubes and toss with olive oil, smoked paprika, salt, and pepper. Spread on one side.
In a bowl, whisk maple syrup, Dijon mustard, garlic, olive oil, thyme, salt, and pepper.
Place chicken on the sheet and brush with half the marinade.
Roast for 15 minutes, then flip chicken, brush with remaining marinade, and toss sweet potatoes.
Roast another 10–15 minutes until chicken reaches 165°F (74°C).
Assemble bowls with chicken and sweet potatoes. Add toppings and serve.