Grate zucchini on the larger side of hand-held grater, or use grating tool on food processor.In several batches, wrap zucchini in cheesecloth, a kitchen towel, or mesh produce bag, and ring out the excess liquid. A mesh produce bag works great for this task! Place grated zucchini in a large mixing bowl. Peel and grate onion using the same grater and add to zucchini.
Add garlic, salt, pepper, baking powder and paprika. Mix well.
Stir in flour and breadcrumbs to integrate with zucchini. In a small separate bowl, beat eggs with fork and add to zucchini mixture. Stir until well-integrated.
Drop by large spoonsful onto greased frying pan or griddle. Pancakes should be roughly 3-4 inches in diameter.
Sauté at medium-high heat until cooked through and golden-brown on both sides, flipping from side to side.
Once each side is browned, you can turn down to medium-low to let them finish cooking through.
Garnish with freshly grated Parmesan and serve warm as side dish or as a meatless entrée. A dollop of crème fraiche would also be yummy on top!