Make the soy flour flat bread: In a medium bowl, whisk together the soy flour, sugar substitute, salt, eggs, heavy cream, and club soda to make a smooth, thick, pancake-like batter. Spray pizza pans generously with the vegetable oil spray. Using a rubber spatula, spread the batter as thinly and evenly as possible over the 2 pans. Bake for about 12 to 15 minutes, or until lightly golden brown and firm to touch.
In a large saute pan or wok, heat oil over high heat. Season the chicken with salt, pepper, cayenne, cumin, and garlic, and add to the hot oil. Next add the peppers and onions, and remove pan from the heat and add tequila. Cook for about 5 minutes, or until chicken is cooked thoroughly. Keep warm.
Cut 1 flat bread into 4 pieces. On 2 pieces, layer cheese, cooked chicken mixture, and more cheese, and cover with the other 2 pieces. (Wrap the other flatbread and freeze for another use).
Lastly, melt butter until very hot in a saute pan over medium-high heat. Add quesadillas and cook for about 2 minutes on each side until toasty and the cheese is melted. Cut quesadillas into 3 pieces each and serve. Garnish with cilantro and scallions, and serve with salsa picante, guacamole, and sour cream, if desired.