Cook rice according to package instructions. We prefer white rice, or jasmine rice, but you can choose other options.
Once the rice is cooked place into a large mixing bowl. Next stir in the sour cream, green chilies, most all the cheese saving a little for the top, jalapeno, chili powder.
Gently mix together. Be careful not to over mix or mash the rice. Otherwise, it may turn out mushy.
Place mixture into a greased 2-quart baking dish. Sprinkle with remixing cheese, and dot with the butter.
Bake at 350 degrees for about 30 minutes.