Just grate the zucchini and potatoes! Nobody knows this delicious recipe!

Ingredients:

60g breadcrumbs (for the base)
3 courgettes, thinly sliced
​​10g salt (for the courgettes)
200g peeled and sliced ​​potatoes
400ml water
3 eggs
10g salt (for the mixture)
5g black pepper
100g flour
40g breadcrumbs (for the topping)
1 onion, finely chopped
250g sliced ​​mushrooms
120g grated mozzarella cheese
20ml oil (for cooking and greasing the baking tray)
Oil to grease a 22 x 22
Prepare the tray:
Grease a 22 x 22 cm baking tray with oil.
Sprinkle 60 g of breadcrumbs evenly over the bottom of the tray.