Place the sunflower seeds and pumpkin seeds in a food processor and pulse until finely ground into a flour. Transfer the seed flour to a bowl and add the buckwheat flour, ground flax seeds, coconut sugar, baking soda and salt. Whisk all dry ingredients together.
Add the coconut oil and coconut water and whisk into a batter.
Heat a waffle maker and pour a ladle-full of batter onto the waffle plates. Cook until golden.
Serve with sliced banana, strawberries and maple syrup.