The "flambe’" in the title refers to the tradition of eating the dish while it is still piping hot, literally "licked by the flames."
For a richer flavor, you can add a thin layer of mustard to the tortilla before adding the toppings.
If you prefer a crunchier base, toast the tortilla lightly before adding the toppings.
You can substitute the wheat tortilla with a slice of baguette or English muffin for a different texture.