Heat the oven to 425°F. Line a baking sheet with parchment and coat lightly with cooking spray.
Place flour, eggs, and a mixture of panko, Parmesan, Italian seasoning, salt, and pepper in three shallow bowls.
Coat each zucchini fry in flour, then egg, then the panko mixture. Arrange in a single layer on the sheet pan.
Spray the tops lightly with cooking spray and bake until crisp and golden, turning once if needed.
Serve immediately with warm marinara.