Preheat oven or air fryer to 400°F.
Toss the gnocchi with the olive oil, garlic powder, salt, and pepper in a large bowl.
Add the seasoned gnocchi to the air fryer basket or tray, avoiding overcrowding to allow them to get crispy; work in batches if necessary.
Air fry the gnocchi for 11-14 minutes, shaking the basket every 5 minutes, to promote even browning. The gnocchi are done when the outsides are golden brown and crispy.
While the gnocchi are air frying, prepare the salad components by slicing the corned beef, shaving the carrots, shaving the cabbage, and washing the greens.
Lay 2-3 slices of corned beef on a lined baking sheet and drizzle with a little bit of oil. Bake for 12-15 minutes, or until crispy.
Remove from oven and let cool slightly. Crumble or chop the baked slices into bite-sized pieces.
Whisk vinaigrette components together in a bowl.
Toss salad with vinaigrette and serve