Preheat oven to 425 degrees. Lightly spray a mini muffin pan with cooking spray.
In a medium bowl, stir together the flour, 1/2 cup oatmeal, baking powder, garlic powder, oregano, basil, salt.
In a small bowl whisk together the remaining ingredients except the 1/3 cup oatmeal. Pour into the flour mixture, stirring until just combined. Do not overmix or muffins may be tough. Spoon into min-muffin cups, filling them about 3/4 full. Sprinkle with remaining 1/3 cup oats.
Bake for 10-12 minutes, or until a wooden toothpick inserted in the center of the muffin comes out clean. Invert the pan onto cooling rack to remove muffins. Allow to cool.