In a blender, pulse together the rolled oats, salt, baking powder, and ground cinnamon until the oats resemble a fine flour texture. Transfer this mixture to a large mixing bowl.

In the same blender, combine the mashed ripe bananas, eggs, melted coconut oil, maple syrup (or honey), fresh spinach, and pure vanilla extract. Blend on high until the mixture is completely smooth.

Return the dry oat mixture to the blender with the wet ingredients. Pulse gently to combine until everything is thoroughly mixed.

Preheat your waffle iron and lightly grease it if necessary. Pour about ½ cup of the batter onto the hot iron and cook for 4–6 minutes or until golden brown.

Once cooked, carefully remove the waffles and place them in a warm oven set at 200°F to keep them warm while you cook the rest.