Prepare the Spaghetti Squash: Preheat your oven to 400°F (200°C).
Cut the spaghetti squash in half lengthwise and scoop out the seeds.
Brush the cut sides with olive oil and sprinkle with salt and pepper.
Place the squash, cut side down, on a baking sheet.
Bake for 30-40 minutes or until the squash is tender.
Use a fork to scrape the strands from the squash into a bowl. Set aside.
Prepare the Stir-Fry Sauce: In a small bowl, mix together soy sauce, oyster sauce, rice vinegar, and Sriracha. Adjust the sweetness with sugar if desired. Set aside.
Stir-Fry the Vegetables: Heat sesame oil in a large skillet or wok over medium-high heat.
Add minced garlic and grated ginger, sauté for 1-2 minutes until fragrant.
Add broccoli, bell pepper, carrot, and snap peas. Stir-fry for 4-5 minutes until vegetables are crisp-tender.
Combine with Spaghetti Squash: Add the spaghetti squash strands to the skillet, tossing to combine with the vegetables.
Add the Sauce: Pour the prepared stir-fry sauce over the vegetable and squash mixture.
Toss everything together until well coated and heated through.
Adjust Seasoning: Taste and adjust seasoning, adding salt, pepper, or more Sriracha as needed. If a thicker sauce is desired, mix 1 tablespoon of cornstarch with a little water and add it to the stir-fry.
Serve: Remove from heat and let it rest for 5 minutes.
Garnish with chopped green onions and sesame seeds.
Enjoy!: Serve the Stir Fry Spaghetti Squash immediately, and revel in the delicious and low-carb alternative to traditional noodles.