Cook the spaghetti in a pot of boiling water that has 1 tablespoon Kosher salt added to it, rinse with cold water and let cool.
To a large bowl, add the spaghetti, tomato, cucumber, zucchini and bell peppers. Toss this mixture with the Italian dressing.
In a small bowl, combine the Parmesan cheese, sesame seeds, paprika, celery seed and garlic powder. Sprinkle this mixture into the salad and toss. Garnish with fresh parsley.