Combine first 5 ingredients in a small shallow bowl. Place egg in a separate shallow bowl.
Trim ends from zucchini; cut each zucchini in half crosswise. Quarter each zucchini half lengthwise to make 24 zucchini sticks. Dip zucchini in egg; dredge in panko mixture; pressing to coat. Place zucchini on a baking sheet coated with cooking spray. Coat tops of zucchini with cooking spray.
Bake at 450° for 20 minutes or until golden brown. Serve immediately with pasta sauce.
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