Place zucchini in a colander and sprinkle with salt. Let sit 10 minutes.
Remove zucchini from colander and wrap in a clean dish towel. Squeeze and wring water out of zucchini.
Place zucchini in a bowl with egg, flour, parmesan, garlic, and black pepper. Mix.
Heat a large frying pan over medium-high heat and add oil.
Take heaping tablespoons of zucchini and place in pan. Flatten out with back of spoon into a 2.5 inch round. Work in batches, making 3-4 at a time, depending on the size of your pan.
Let cook 4 minutes and flip. Cook an additional 4 minutes.
Remove zucchini fritters using a slotted spatula.
Continue cooking until all zucchini is used up.
Store zucchini fritters under a piece of foil until ready to serve.