In a large bowl, combine flour, baking powder, and salt. Gradually add warm water, mixing until a dough forms.
Knead the dough on a floured surface until smooth. Divide into 8 balls, flatten into discs.
Heat oil in a skillet over medium heat. Fry each disc until golden brown, about 2 minutes per side. Drain on paper towels.
In another skillet, cook ground beef or turkey over medium heat until browned. Add taco seasoning according to package instructions.
Top each fry bread with meat, lettuce, tomatoes, cheese, olives, sour cream, and salsa.