Cook Beef And Onion Together In A Frying Pan. Season With Salt, Pepper, Garlic Salt And Chile Powder. While Cooking The Meat, Mix With Hands All Ingredients For Shells. Pinch Off Small Portion Of Dough And Roll Into 2-Inch Ball. With Quick Patting Motion, Flatten Out To 1/2 Inch Thickness And About 3 Inches In Diameter. Fry In Hot Cooking Oil Until Golden Brown, Turning Once. Drain. Make A Slit Through The Middle; Open Slightly Like A Taco Shell And Stuff With Meat Mixture, Lettuce, Tomatoes And Cheese.