serves 4 to 5 Saute onion in a skillet in hot oil. Add ground beef, chili powder, ground cum in, salt, and garlic. When ground beef is brown, stir in tomato sauce. Heat through. Stir in black olives.
Prepare foil handles. Place in any size Crock-Pot. Lightly butter one corn tortilla. Lay buttered side up on foil strips. Spread with meat sauce and a lay er of cheese. Cover with another buttered tortilla, more meat sauce and cheese . Repeat layers ending with cheese. Cover; cook on HIGH 1 hour. When ready t o serve lift out, using foil handles, and transfer to serving dish. discard foil handles. Cut into wedges. Serve with sour cream and green onion if desired .
To make the handles: Tear off three 20 x 8 cm strips of heavy foil or use regular foil folded to double thickness. Crisscross the foil strips in a spoke design.
If preparing a Mexican tortilla stack meal: place the foil strips in a spoke design in the Crock-Pot. Then layer the tortillas and meat and cheese mixtures on top of the foil in the Crock-Pot.
When ready to serve, simple lift the foil handles from the Crock-Pot and remove the meal to a serving dish.