Spray a 6-inch skillet with Pam spray. Add the sliced zucchini and place over low heat. Whip the eggs with the water, cayenne pepper and salt. Pour into the pan with the zucchini. Top with the shredded Havarti (you may use colby Jack cheese, or your favorite). Cover and cook on low heat for about 3 or 4 minutes, until it is set and not runny.