Preheat a nonstick waffle iron.
In a medium bowl, mix ¼ cup cottage cheese, ¼ cup shredded sharp cheddar cheese, 1 large egg, and 2 tablespoon minced scallions.
In a small bowl, whisk ¼ cup all purpose flour, ½ teaspoon baking powder, ¼ teaspoon baking soda, ⅛ teaspoon each fine sea salt and black pepper, and ¼ teaspoon garlic powder.
Add dry ingredients to wet, stirring until faint flour streaks remain.
Add ¼ cup finely chopped baby spinach and stir just until combined. (Don't overmix; batter is supposed to be quite thick)
Use oil spray on both sides of pre-heated waffle iron, then fill with batter.
Cook until crisp on the outside and cooked through. Repeat if needed.
Add toppings, if desired.
