Grate zucchini and let sit on a colander and squeeze with both hands until the excess liquid is drained.
In a non-stick pan cook sausage patties until brown.
Cut them in small pieces.
In a large bowl mix zucchini, eggs, flour, mozzarella and diced sausage.
Add salt and pepper.
Heat olive oil in a large skillet.
Spoon mixture in the pan and cook both sides until brown and crispy.