Preheat your oven to 400°F for roasting the sweet potatoes.
Peel (if preferred) and cube the sweet potato into bite-sized pieces. Toss the cubes with a pinch of salt, pepper, and a tiny drizzle of olive oil if desired, then spread them on a baking sheet.
Roast the sweet potato cubes in the oven for about 20-25 minutes until tender and lightly caramelized, stirring halfway through.
While the potatoes roast, finely dice the half small onion.
In a medium saucepan over medium heat, add the diced onion and cook until translucent.
Add the lean ground turkey to the pan, breaking it up with a spatula, and cook until it’s fully browned.
Stir in the chili powder, ground cumin, kidney beans, and diced tomatoes into the turkey mixture. Bring to a gentle simmer and let the flavors meld for about 8-10 minutes. Season with salt and pepper to taste.
Once the sweet potatoes are roasted and the chili has simmered, plate the turkey chili and top with the sprinkles of melty cheddar cheese. For extra melty effect, you can warm the cheese slightly or place under a broiler for a minute.
Serve the dish warm and enjoy your hearty, balanced meal!