In a small saucepan, melt cream cheese and 1 stick of butter. Set aside. In a large skillet, melt 2 tablespoons butter and saute shrimp, onion, bell pepper and celery (may need more butter). Add cream cheese mixture to shrimp and veggies. Then add soup and seasonings, mixing well. Stir in crab meat and rice. Pour into a greased 9x13 baking dish. Top with cheese and cracker crumbs. Bake at 350 degrees for 20-30 minutes until heated through.
May substitute pasta for rice. Best made the day before serving, heat before serving.