Shred both and place them into the paper towel-lined bowl. Place another paper towel on top and gently press down to allow the paper towels to soak up the water from the zucchinis. Set aside for 10 minutes.
In a large mixing bowl: mix the flour, bread crumbs, onion powder, minced onion, dried Oregano, ground pepper, and salt. Mix until all ingredients are well blended.
Add the grated Parmigiano and mix until the flour coats the cheese.
When the 10-minute drying has passed, add the shredded zucchini to the flour mixture. Gently mix to coat the zucchini with the flour mixture.
Crack the eggs and mix them into the zucchini fritter dough. It will be a wet dough.
Preheat the griddle on medium-low heat.
Once the griddle is at about 375 to 400 degrees F., place the fritters on the flat top. I used a large cookie scoop and scooped the mixture onto the griddle.
Using the two spatulas, press down on the dough ball to form a fritter patty. Cook for 3 to 4 minutes then flip.
Cook for an additional 3 to 4 minutes on the second side.