01 - Preheat the oven to 400°F. Lightly grease a 9×13-inch baking dish and set aside.
02 - In a large skillet over medium heat, cook the ground turkey until browned throughout, breaking it apart with a spoon, about 5 to 6 minutes. Add the diced onion, red bell pepper, and minced garlic; sauté for 3 to 4 minutes until the vegetables are softened.
03 - Stir in the ground cumin, smoked paprika, chili powder, dried oregano, salt, and black pepper. Cook for 1 minute, stirring constantly, until the spices are fragrant and evenly distributed.
04 - Add the diced sweet potatoes, rinsed black beans, diced tomatoes with their juices, and chicken broth to the skillet. Bring the mixture to a simmer and cook for 8 to 10 minutes, stirring occasionally, until the sweet potatoes begin to soften.
05 - Transfer the entire mixture to the prepared baking dish, spreading it into an even layer. Cover tightly with aluminum foil and bake for 20 minutes.
06 - Remove the foil and sprinkle the shredded cheese evenly over the top. Return to the oven uncovered and bake for an additional 10 minutes, or until the sweet potatoes are fork-tender and the cheese is melted and bubbly.
07 - Let the bake rest for 5 minutes before serving. Garnish with chopped fresh cilantro and sliced avocado if desired.