|Red onion||1 Medium|
|Italian salad dressing||1 Cup (16 tbs)|
|Salad seasoning||2 Tablespoon|
Cook spaghetti according to package directions; drain.
Rinse with cold water, and drain again.
Combine spaghetti and next 4 ingredients; toss gently.
Cover and chill overnight.
Add tomatoes and cucumber, tossing gently before serving.