In a Dutch oven heat olive oil over medium heat; add ground beef and cook until
Meanwhile, grind garlic, cumin and oregano to a paste in a molcajete or mortar
and pestle. Add chile powder, garlic paste and salt to the meat and cook about 1
minute. Next, add 1 cup water and stir to make certain the meat is well broken up.
Add beans, bring the chile mixture to a simmer, and cook, uncovered, until most
but not all the moisture has evaporated.
Place the fry breads on serving plates and ladle the chile mixture over them.
Top with the cheese, lettuce and tomatoes.