01 - Preheat oven to 425°F. Line a baking sheet with parchment paper and lightly oil or spray it.
02 - Cut zucchini into sticks about 3 inches long and 1/2 inch thick.
03 - In a shallow bowl, whisk together eggs and milk.
04 - In another bowl, combine panko, Parmesan, Italian herbs, garlic powder, salt, and black pepper.
05 - Dip zucchini sticks into the egg mixture, then coat thoroughly in the breadcrumb mixture. Arrange on the prepared baking sheet.
06 - Lightly spray or drizzle the zucchini fries with olive oil.
07 - Bake for 20–25 minutes, turning once halfway, until golden and crisp.
08 - While the fries bake, heat olive oil in a saucepan over medium heat. Add onion and sauté for 3 minutes until soft.
09 - Stir in garlic and cook for 30 seconds. Add crushed tomatoes, oregano, and sugar. Season with salt and pepper.
10 - Simmer uncovered for 10–12 minutes, stirring occasionally, until thickened. Stir in basil if using.
11 - Serve zucchini fries hot with warm marinara sauce for dipping.