ingredients1 medium spaghetti squash*2 large garli extra virgin3/4 cup chicken stock, low sodium2 tsp cornstarch1/2 tsp saltground black pepper, to taste1/2 cup (2 oz ) parmesan cheese, grated3/4 cup plain greek yogurt2 cup s (6 oz ) cooked chicken breast, shredded1/4 cup mozzarella cheese, shredded