2 cups grated zucchini
2 eggs, beaten
½ cup all-purpose flour
½ cup grated Parmesan cheese
½ cup shredded mozzarella cheese
¼ cup chopped onion
salt to taste
2 tablespoons vegetable oil
Combine zucchini, eggs, flour, Parmesan cheese, mozzarella cheese, onion, and salt in a medium bowl. Stir well enough to distribute ingredients evenly.
Heat oil in a skillet over medium-high heat.
Working in batches, scoop tablespoonfuls of zucchini mixture into hot oil and fry until golden brown, about 2 minutes per side.