If using zucchini in place of capellini pasta spiralize 3-4 large zucchini. Wash and slice off ends then cut in half width wise. Using gentle pressure on the smallest noodle setting make zucchini noodles. Sauté in a sauce pan with either two teaspoons butter or two teaspoons olive oil. Season with a little salt and pepper then place in bowls. Top with clams, broth and remaining ingredients as stated above. Since there will be no reserved salted pasta water with using zucchini noodles you can add in an extra cup of clam juice in place of the water and ½ teaspoon to 1 teaspoon sea salt or season to taste with salt. OR heat 1 cup of water to a simmer and dissolve ½ -1 teaspoon salt then add that to the pot of clams.