1 medium sized spaghetti squash 2 Tb. olive oil, divided salt and pepper 1 small onion, diced 1/2 cup diced celery 1/2 cup broccoli florets, roughly chopped 1/2 cup matchstick carrots 1/2 cup water chestnuts, chopped chopped peanuts, garnish Sauce: 1/3 cup soy sauce 2…