In a small bowl, combine the seasonings. (If necessary, clean and devein the shrimp under cold running water. Drain well, set aside.) In a large skillet over high heat, combine the margarine, garlic and Worcestershire sauce; add spices. When margarine is melted, add the tomato and shrimp. Cook for two minutes, stirring frequently. Add the beer and cover; cook for 1 minute longer. Remove from heat and serve over rice.
