Preheat your oven to 375°F (190°C).
Heat the avocado oil in a large skillet over medium-high heat.
Add the ground turkey, diced red onion, and diced bell pepper to the skillet.
Sauté until the turkey is fully browned and the vegetables have softened, breaking the meat into small crumbles.
Stir in the rinsed black beans, tomato puree, chili powder, ground cumin, garlic powder, and sea salt until well combined.
Transfer the turkey and bean mixture into a small oven-safe baking dish, spreading it into an even layer.
Sprinkle the shredded cheddar cheese evenly over the top of the mixture.
Bake for 15 to 20 minutes until the cheese is melted and the edges of the casserole are bubbling.
Remove from the oven and top with a dollop of plain Greek yogurt and fresh chopped cilantro before serving.