Sauce

Preheat oven to 325ºF. In medium bowl combine flour and salt. Cut in Crisco to form coarse crumbs. Add water, 1 tablespoon at a time, mixing with fork until particles are moistened and cling together. Form dough into ball. Roll into a 10-inch square on lightly floured board. Ease dough into 9 x 2-inch pan. Press excess up around edges of pan to form 1-inch rim. Bake at 325ºF for 10 minutes. Set aside.
For filling, in large bowl blend eggs, evaporated milk, flour, Worcestershire sauce, salt and garlic powder. Stir in shrimp, cheese, carrot and onion. Pour into partially-baked pastry. Bake at 325ºF for 30 to 35 minutes, or until knife inserted in center comes out clean. Cut into 20 squares.