Baked Zucchini Chips Ingredients 1 medium zucchini 1 egg white, lightly beaten 2 Tbsp Parmesan cheese, shredded 1/4 cup Panko crumbs 1/4 tsp garlic powder 1/4 tsp onion powder salt  pepper  Bake at 425 for 20 minutes. Flip each slice over and bake a further 10 - 12 minutes, until nicely browned and crispy. Serve hot.