1 head lettuce
1 lb. hamburger
1 1/2 tsp. chili powder
1 tsp. oregano
1 tsp. cumin
2 sm. cans sliced olives
1 bunch green onions
3 tomatoes
1/2 lb. Cheddar cheese, shredded
1 pkg. Dorito chips
1 avocado (optional)

DRESSING:

1/2 c. catsup
1/2 c. mayonnaise
1/2 c. taco sauce

Brown meat lightly, season with garlic salt while cooking. Add other spices while still hot after draining meat. Let meat cool and add remainder of ingredients. Add Doritos just before serving.