Peel shrimp; devein, if desired.
Place cooked rice in a bowl. Add shrimp, cheese, and soup to rice.
Melt butter in a large skillet over medium-high heat, and add green onions; cook, stirring constantly, until tender.
Stir green onions, Worcestershire sauce, and next 4 ingredients into rice mixture. Spoon into a lightly greased 11- x 7- x 1 1/2-inch or 2-quart baking dish.
Bake casserole at 375° for 45 minutes. Garnish, if desired.
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