Drain the cans of Sliced Potatoes and Sliced Carrots over a colander. Gently pat them dry with paper towels or a clean kitchen towel to remove the moisture. We also find it’s helpful to let them sit out to air dry for 1 hour.
In a large bowl, add the drained potatoes and carrots and use a rubber spatula to very gently toss with olive oil, rosemary, garlic powder, salt, and black pepper until everything is evenly coated.
Preheat your air fryer to 400°F (205°C) for about 3 minutes. Once preheated, spray the basket with cooking spray and arrange the seasoned potatoes and carrots in a single layer.
Air fry for 17-20 minutes, or until potatoes and carrots are golden brown and crispy. Stir halfway through to promote even browning and crispiness.
Optional: After cooking, squeeze over the desired amount of lemon juice for a hit of bright flavor.