This Southwestern Quinoa and Black Bean Casserole is a hearty and flavorful dish that combines the nutty taste of quinoa with the smoky flavors of black beans and spices. It is a perfect vegetarian option for a weeknight dinner or a potluck gathering. The casserole is topped with melted cheese and served with a dollop of sour cream and fresh cilantro for added creaminess and freshness. It is a satisfying and nutritious meal that will leave you wanting more.