Combine all the ingredients in a food processor or blender and blend until the mixture is smooth.
Prepare a baking sheet by lining it with parchment paper and lightly spraying it with cooking spray.
Pour the blended mixture onto the baking sheet.
Spread the mixture evenly, shaping it to your desired flatbread size and style.
Sprinkle oregano or any other toppings of your choice over the surface.
Bake at 350°F (176°C) for 30–35 minutes, adjusting the time based on thickness (longer for thick flatbread, shorter for thin).
Once it turns golden brown, remove it from the oven, let it cool completely, and enjoy.