In a medium-sized bowl, mix the flour, baking powder, and salt together. In large bowl, whisk together the eggs, oil, milk, and water. Add the dry ingredients to the wet ingredients and stir until everything is well incorporated.
Fold in the cheese, scallions, basil, spinach, and orange pepper. The batter should be fairly thick.
Spray a waffle iron with cooking spray and heat it up. Pour some batter into the waffle iron. Be careful not to pour so much batter that it fills up the iron to the outer edge. If the iron is overfilled, the edges will not be cooked as well.
Cook the waffles for several minutes or to your desired color and crispness.
Let your waffles cool and serve with some maple syrup or just eat them plain!
Refrigerate any leftovers in an airtight container.