Preheat the oven to 400°F (200°C) and line a large baking sheet with parchment paper.
In a large bowl, combine the soy sauce, honey, sesame oil, garlic, ginger, cornstarch, and water. Mix well to create a marinade.
Add the chicken pieces to the marinade and toss to coat evenly. Let it marinate for about 15 minutes.
Spread the marinated chicken on the prepared baking sheet in a single layer.
Scatter the broccoli, red bell pepper, snap peas, and cashews over the chicken.
Bake in the preheated oven for 20-25 minutes, or until the chicken is cooked through and the vegetables are tender. Stir halfway through for even cooking.
Serve hot over cooked rice or quinoa.