Preheat oven to 350 degrees. Pour the tomatillo salsa into a food processor or a blender. Add the Poblano chiles, lettuce leaves, cilantro, scallions, garlic, water and salt and process until liquified. Set aside. In a medium skillet heat vegetable oil over medium-low heat. Add rice, stirring constantly, until golden and crackling, about five minutes. Pour in the reserved green puree and stir to combine. Transfer to a 4-quart baking dish, cover with foil and bake until the liquid is absorbed and the rice is tender, 30 - 35 minutes. Stir with a fork and serve hot.
In blender place tomatillos, jalapenos and water. Puree until just chunky. Add remaining ingredients and puree about 2 minutes more, or until no large chunks remain. This salsa keeps in the refrigerator, in a covered container, about 3 days.
c.1997, M.S. Milliken & S. Feniger, all rights reserved