Spray 2 air fryer baskets with cooking spray.
Slice 2 zucchini into 8 pieces. (Slice them in half first, then each half into quarters.) Set the zucchini in a ziplock bag & add the breadcrumbs. Zip the bag & toss the zucchini to get each piece coated evenly. Arrange the zucchini sticks in an even layer on one of the prepared mesh baskets. Place the basket to the top position of the air fryer.
Wash the asparagus & remove the bottom 2 inches off each stock. Spray the asparagus lightly with cooking spray. Sprinkle with season salt. Place the basket in one of the lower positions in the air fryer.
Use the french fry setting & decrease the time to 12 minutes. Serve as a side dish to any meal or a stand alone dish with ranch dressing.