Roasted Tomatillo Sauce

Fill a cookie sheet with halved tomatillos and hot peppers to taste. Roast in a 300-degree oven for an hour. Puree in blender with a few tomatoes and a little olive oil. Store in fridge in a container with a tight lid. This seems to keep well for several weeks. Add generously to whatever you're cooking -- simmer with half a cup of water, leftover rice and pinto beans.