Heat oven to 425°F. Spray large rimmed baking sheet with non stick spray. Slice zucchinis in half and then again in half along the length. You should have 4 quarters. Slice quarters into 5 slim pieces. Put egg whites in a shallow bowl and beat with fork until a little froth appears. Mix bread crumbs, corn meal, salt, and oregano (optional) in a shallow bowl.

Dip zucchini pieces into egg whites, and then into bread crumb mixture. Place on baking sheet and bake for 10 minutes. Flip and bake for 10 minutes longer. Serve with ketchup or marinara sauce.

These can be made ahead and just eaten at room temperature. They are best out of the oven.