Prepare the pizza dough according to the recipe instructions.

Then, on a lightly floured surface, knead the dough until smoother.

Divide the dough into 8 equal portions, each about 4 ounces, and roll each into a ball.

Working with one piece of dough at a time, and covering the others with a moist tea towel so they do not dry out, sprinkle the dough lightly with bread flour.

With well-floured hands and a well-floured rolling pin, pat and roll out the first piece of dough into a 7-inch diameter round, rotating the dough and flouring it frequently, to prevent sticking, as shown in this gluten free pizza shaping video.

Transfer the round of dough to a piece of unbleached parchment paper.

Repeat with the remaining 7 pieces of dough. Cover the rounds loosely with a moist tea towel and allow them rise slightly while you prepare the fillings.

In a medium, heavy-bottom skillet, brown the ground beef until nearly cooked through (about 4 minutes).

Add the cumin, chili powder, paprika, oregano, salt, garlic powder, black pepper and red pepper flakes, and mix to combine with the ground beef. Transfer the beef to a small bowl and set it aside.

In a clean heavy-bottom skillet with high sides, place about 2 inches of frying oil.

Clip a deep-fry/candy thermometer to the side of the skillet, and bring the oil to 350°F over medium heat. Line a plate with paper towels, and set it aside.

Once the oil has reached temperature, fry the round of dough into chalupa shells one at a time using the following method, and working quickly: place the round of dough, flat, into the hot oil.

Allow it to cook for only 10 seconds. Using heat-safe tongs, fold the dough in half down the center of the round, and allow the dough to cook for another 10 seconds, pressing it down gently into the oil using the tongs to ensure that it is making contact with the oil.

Using the tongs, carefully turn the chalupa shell over and cook for another 10 seconds, again pressing down gently with the tongs.

Continue to cook on each side for 10 seconds at a time until the entire shell is very lightly golden brown all over.

Lift the shell out of the oil with the tongs and allow the excess oil to drain before placing the shell on the paper towel-lined plate to drain.

Repeat with the remaining rounds of dough. The shells can be kept warm on a lined baking sheet in a 200°F oven until all the shells are ready to be served.

To assemble the chalupas, fill each with the seasoned ground beef, cheddar and Monterey Jack cheeses, lettuce, tomatoes and sour cream, and serve warm.