Preheat oven to 350 degrees Fahrenheit (180 degrees Celsius).

Slice the spaghetti squash in half lengthwise and spray with cooking spray.

Season lightly with salt and pepper.

Place on a Gefen Parchment-covered baking sheet and bake, cut side down, for 45 minutes or until fork tender.

Scrape the strings into a bowl and set aside. (This can be done up to three days in advance and kept in the fridge.)

Set a medium saucepan over medium heat. Spray with cooking spray and sauté crushed garlic and ginger until fragrant.

Add scallion whites and cook another five minutes until softened.

Pour in broth, water, soy sauce, and mirin, and bring to a light boil.

Meanwhile, season chicken with salt and pepper. Spray a large frying pan, and cook chicken for four to five minutes per side, then slice thinly.

Remove from the pan and spray again.

Cook the bok choy, covered, for three minutes, to soften stems, then uncovered for an additional minute.

Remove from pan and sauté enoki mushrooms for one minute. (If using cremini mushrooms, sauté for five to six minutes until browned.)

Divide spaghetti squash, chicken, bok choy, and mushrooms among four large bowls.

Ladle in the seasoned broth and add scallion greens.