In a large bowl, beat the eggs.
Add the cottage cheese and mix it well until it combines with the eggs.
Stir in the finely chopped spinach.
Add milk, water, and oil to the mixture and mix it well.
Gradually add the cornmeal and baking powder to the mixture, stirring continuously until you get a smooth batter.
Season it with salt according to your taste and give it one more good stir.
Preheat your oven to 400°F (200°C).
Grease your baking tray with oil and make sure to heat it well in the oven to prevent the cornbread from sticking.
Carefully pour your batter into the preheated baking tray and smooth out the surface.
Place the tray in the oven and bake for about 25 minutes, or until the cornbread obtains a golden-brown color and is cooked through.
In the meantime, prepare your topping by beating one egg with 3.5 ounces of cottage cheese.
Remove the baking tray from the oven and pour your prepared topping over the batter in the tray.
Let the cornbread cool for a bit before cutting and serving it.