Cut the Monterey Jack cheese into strips about 1/8" thick. Thoroughly mix sour cream
and chiles. Butter a 1-1/2 quart casserole. Season rice with salt and
Layer rice, sour cream mixture and cheese strips, in that order, until you
finish with rice on the top. Bake in a 350° oven for about 30 minutes.
During the last few minutes of baking sprinkle the grated cheddar cheese
over the rice and allow it to melt before removing casserole from oven.