Add quinoa to 1 cup water in a saucepan and bring to a boil. Reduce heat to low and cover.
Cook for 12-15 minutes, or until most of the liquid is absorbed.
Preheat oven to 350 degrees.
Toss quinoa with beans and spices. Spread 1/2 across the bottom of a 9 x 13-inch casserole pan. Top with an even layer of salsa, then a layer of cheddar. Repeat layering, ending with cheese on top.
Loosely cover with foil and bake for 25-30 minutes or until heated through and cheese is melted.
Serve with cilantro and sour cream or Greek yogurt for topping.