Whisk together brown rice flour, flaxseed meal, salt, baking powder, and Stevia until blended. Add the water to the flour mixture and stir to mix. You should have a thick dough that's not dry or wet.
Heat a nonstick skillet or griddle over medium-low heat and lightly spray with oil. Divide the dough into 4 to 6 portions (depending on how large you want them) and roll them into balls.
If you're cooking these in a small pan one at a time, cover the other dough balls with plastic wrap to keep them from drying out.
Flatten each dough portion between 2 sheets of parchment paper into discs about 1/8 inch thick. Don't make them too thin or they will not be flexible after you cook them! 1/8 inch works good
Cook the flatbread on a nonstick skillet or griddle about 1 to 2 minutes on each side. If you want your flatbread soft and pliable, do not over-cook or brown them.