01 - Preheat oven to 400°F. Halve the spaghetti squash lengthwise and scoop out the seeds. Brush the cut sides lightly with oil, place cut side down on a baking sheet, and roast for 35–40 minutes until fork-tender.
02 - While the squash roasts, whisk together the soy sauce, oyster sauce, sesame oil, rice vinegar, honey, and Sriracha in a small bowl until well combined. Set aside.
03 - Heat 1 tablespoon of vegetable oil in a large skillet or wok over medium-high heat. Add the sliced chicken and cook for 5–6 minutes, turning occasionally, until golden brown and cooked through. Transfer to a plate and set aside.
04 - Add the remaining tablespoon of oil to the same skillet. Add the garlic, ginger, shredded carrots, bell pepper, and snap peas. Stir-fry for 3–4 minutes until the vegetables are crisp-tender.
05 - Once the squash is cool enough to handle, use a fork to scrape the flesh into noodle-like strands, working from edge to center.
06 - Add the shredded squash to the skillet with the vegetables and toss to combine. Return the cooked chicken to the pan, pour the sauce over everything, and toss well. Cook for an additional 2–3 minutes until heated through and the flavors meld.
07 - Transfer to plates and garnish with sliced green onions and sesame seeds. Serve immediately.