Preheat the oven to 400 degrees and line a baking sheet with parchment paper.

Whisk together the egg and milk in one shallow bowl.

In another shallow bowl or plate, stir together the breadcrumbs, garlic powder, and Italians seasoning.

Combine the flour, salt, and pepper in a third shallow bowl.

Cut the zucchini into thin strips by first removing the ends. Then, cut the zucchini in half and cut each half into thirds. After that, cut each third into strips.

Dip each zucchini strip in the egg mixture, then flour mixture, then back in the egg mixture, then in the breadcrumb mixture. Transfer the coated zucchini pieces to the lined baking sheet.

After all the zucchini is coated in breadcrumbs, spray each piece liberally with nonstick cooking spray.

Place the baking sheet in the oven and bake for 25 to 30 minutes, until golden brown.

Serve with marinara sauce for dipping, if desired.