Step 1

Preheat oven to 425 degrees F. Line 2 baking sheets with parchment paper; coat with cooking spray. Place cornstarch in a shallow dish. Place egg whites in a separate shallow dish. Stir together panko, Parmesan and oregano in a third shallow dish.

Step 2

Coarsely chop zucchini noodles into 5- or 6-inch-long pieces. Working in batches, dredge the noodles in the cornstarch; shake off excess. Dredge in the egg whites; shake off excess. Dredge in the panko mixture; shake off excess. Arrange the noodles, well spaced apart, in a single layer on the prepared baking sheets. Coat with cooking spray.

Step 3

Bake until golden and crispy, 10 to 12 minutes. Remove from oven; sprinkle with salt.

Step 4

Combine ranch and marinara in a shallow bowl; serve alongside the fries.