Prepare fajitas by cooking as desired, and chop. Have ready tostada
shells, refried beans, lettuce, tomatoes, cheese, and avocados--set
aside. Spread refried beans on fried tortilla, then cover plentifully
with fajita meat. Top with lettuce, tomatoes, cheese, and avocados.
Garnish with a spoon of sour cream in the middle of the tostada.
Recipe by South of the Border Tex-Mex Cookin by Les Blair, 1995