Spaghetti Salad

1 pint grape tomatoes , sliced in half, can use cherry tomatoes

1 cup chopped onion

1 cucumber , seeded and diced

1 bell pepper , diced

2 1/4 ounces sliced black olives , drained

8 -12 ounces low-fat Italian salad dressing, depending on how wet you want it

2 tablespoons grated parmesan cheese

1/4 teaspoon celery seed

1/8 teaspoon garlic powder

1/4 teaspoon pepper

1/4 teaspoon dill weed

salt , to taste