Preheat the oven to 200°C (400°F).
Peel and cube the sweet potatoes into even pieces.
Place the sweet potatoes in a mixing bowl.
Add olive oil, minced garlic, chopped sage, salt, and pepper.
Scatter minced garlic over the tray during the last 15 minutes of roasting.
Toss until the potatoes are evenly coated.
Arrange the sweet potatoes on a baking tray.
Lightly rub the chicken with olive oil, then season with salt, pepper, and optional paprika.
Place the chicken on the same tray with the potatoes.
Leave some space between the chicken and potatoes for better roasting and browning.
Roast for 40–45 minutes, or until the sweet potatoes are tender and the chicken is fully cooked.
Flip the sweet potatoes halfway through cooking.
Check that the chicken is fully cooked and golden.
Ensure the chicken reaches an internal temperature of 75°C (165°F).
Let rest for 5 minutes before serving.