Preheat oven to 425°F (220°C). Line a large baking sheet with parchment paper.
Cut sweet potatoes into 1-inch cubes. Toss with 1 tbsp olive oil, smoked paprika, salt, and pepper. Spread on one side of the pan.
In a bowl, whisk maple syrup, Dijon mustard, garlic, remaining olive oil, thyme, salt, and pepper.
Pat chicken dry and place on the other side of the sheet pan. Brush with half the marinade.
Roast for 15 minutes. Flip chicken, brush with remaining marinade, and stir sweet potatoes.
Roast another 10–15 minutes until the chicken is fully cooked and sweet potatoes are tender.
Assemble your Maple Dijon Chicken Bowl with chicken and sweet potatoes. Add toppings and drizzle extra maple syrup if desired.