Preheat the oven to 400 degrees F (200 degrees C).
In a large bowl, combine the chickpeas, olive oil, garlic powder, salt, and pepper. Toss to coat.
Spread the chickpeas on a baking sheet and bake for 20-25 minutes, or until golden brown and crispy.
In a separate bowl, combine the sweet potato cubes, olive oil, salt, and pepper. Toss to coat.
Spread the sweet potato cubes on a baking sheet and bake for 15-20 minutes, or until tender and lightly browned.
Air fry the chicken sausage according to the package directions.
To make the dressing, whisk together the olive oil, lemon juice, Dijon mustard, honey, salt, and pepper.
To assemble the salad, combine the spinach, chicken sausage, sweet potato, and chickpeas in a large bowl. Drizzle with the dressing and toss to coat.
Serve immediately or chill for later.