Cook the rice according to package directions.
About 15 min before the rice is ready, melt the butter in a large heavy skillet over medium-low heat. Add the onion and saute, stirring often, until the onion is very soft and just begins to color, about 10 min.
Stir in the garlic and the walnuts. Sauté over medium heat, stirring, until the walnuts and onions are golden and the garlic is tender.
Let the rice stand, covered, for 5 min. Spoon into a bowl. Spoon the onions and walnuts on top and lightly fluff with a fork. Garnish with the scallions.
This goes great with broiled fish fillets.Servings: