Peel and dice 2 medium sweet potatoes into small, even cubes about ½ inch pieces. Set aside.
Heat 1 tablespoon of olive oil in a skillet over medium heat. Add 1 pound of ground turkey and cook, breaking it up, until no longer pink, about 5-7 minutes. Season lightly with salt and pepper. Remove turkey and set aside.
Add remaining tablespoon of olive oil to skillet. Sauté 1 small chopped onion, 2 minced garlic cloves, and 1 chopped bell pepper for about 5 minutes until onion is translucent and peppers soften.
Add diced sweet potatoes to skillet with veggies. Stir to coat with oil and cook for 10-12 minutes, stirring occasionally, until tender but not mushy.
Stir in 1 can rinsed and drained black beans, 1 cup corn kernels, and 1 can diced tomatoes with green chilies. Mix to combine.
Sprinkle 1 teaspoon ground cumin, 1 teaspoon chili powder, and salt and pepper to taste over mixture. Stir well.
Add cooked ground turkey back to skillet. Stir and reduce heat to low. Cover and simmer for 5 minutes to meld flavors.
Sprinkle 1 cup shredded cheddar cheese evenly over top. Cover and cook 3-5 minutes until cheese melts. Garnish with fresh chopped cilantro before serving.