Preheat the oven to 375 degrees. Grease a sheet pan with 2 teaspoons of rice bran oil.
Slice the spaghetti squash in half lengthwise and put the two halves flesh-side down onto the greased pan. Bake for 35 minutes, or until the skin is fork-tender.
Melt 2 teaspoons of the coconut oil over medium-high heat in a large soup pot. Add the cumin seed and mustard seed.
Once the seeds pop, stir in the onion, carrot, and celery. Saute until the onion becomes soft and translucent.
Stir in the turmeric, salt, chicken thighs, chicken breast, bone broth, astragalus root, bay leaves, rosemary, and thyme.
Cover, reduce the heat to medium-low, and cook until the chicken is cooked all the way through, about 20 minutes.
In a separate skillet, melt the remaining 1 teaspoon of coconut oil over medium-high heat.
Stir in the shiitake mushrooms, garlic, ginger, and optional turkey tail mushroom. Saute until the mushrooms soften.
Stir in the mustard greens and saute for 30 seconds. Remove from heat and add the mushroom mixture to the soup.
Use tongs to remove the chicken thighs and breasts from the soup pot. Shred the meat and add it back to the pot, along with the scooped-out roasted spaghetti squash. Give it a good stir.
Season with lemon, apple cider vinegar, Bragg’s, and salt and pepper to taste.