Butternut Squash With Pistou without bay basil

For the salad (use as much or as little of each ingredient as you want): 1/2 cup butternut squash , cut into 1/2 inch cubes 1 tsp. olive oil 2 cups arugula[...]

6 cups chicken stock (or water) 6 cups chopped peeled butternut squash (about 2 pounds) 2 tablespoons minced onion 2 tablespoons minced celery 1 1/2 cups[...]