1. Brown ground beef and drain fat.
2. Stir in seasoning mix, water and olives.
3. Simmer 5 minutes.
4. Unroll cans of crescent dough and press contents of each into 2 10 inch pie plates to form crusts.
5. Add 1/2 cup tortilla chips to each pie, then divide meat mixture& add to each.
6. Spread meat with sour cream.
7. Cover pies with grated cheese& additional tortilla chips.
8. Bake at 375* about 20-25 minutes or till browned and bubbly.
9. Remove and serve w/ lettuce and tomato as garnish.