Divide the beef into 6 loose balls.
In a small bowl, combine the chili powder, cumin, smoked paprika, garlic powder, onion powder, oregano, and cayenne.
Place a tortilla on a work surface and top with a handful of cheese.
Place a beef ball in the center, then use your fingers to spread it into a thin, even layer on top of the cheese.
Repeat with remaining tacos, then sprinkle the seasonings on top.
Heat a large cast iron or nonstick skillet over medium high.
Once it's good and hot, drizzle in a little oil and stir to coat.
Quickly drop the tortilla beef-side down, then with the back of a very sturdy spatula or a burger press, smash the tortilla into the meat, twisting back and forth a bit, so the beef spreads even more thinly.
Cook on the first side until the meat is browned and crisp, 2 to 3 minutes.
Flip and cook on the other side until the tortilla is golden, about 2 minutes more.
Carefully transfer to a plate, then enjoy with your favorite toppings.
