Grate the yellow squash and squeeze out excess moisture using a clean kitchen towel.
In a mixing bowl, combine grated squash, all-purpose flour, beaten egg, Parmesan cheese, salt, and black pepper. Mix well until ingredients are fully incorporated.
Heat olive oil in a large skillet over medium heat. Scoop 2 tablespoons of batter per fritter and flatten slightly in the skillet.
Cook fritters for 3-4 minutes per side or until golden brown and cooked through. Remove and drain on paper towels.
Serve warm with your favorite dipping sauce or as a side to your meal.
Notes
For best results, use fresh yellow squash and serve fritters immediately after cooking.