Given the task definition and input, reply with output. In this task, you have to identify the named entities (NER) which are the ingredients required given its directions. Named entities are the names of the items without their quantity.

Cook spaghetti; drain in cold water., Add Italian dressing, seasoning, bell pepper, mushrooms and green onion., Blend Pasta Salad Vinaigretta with oil and vinegar., Add diced cucumbers; season to taste., Cover and refrigerate overnight., When ready to serve, add diced tomatoes.
Italian dressing, bell pepper, mushrooms, green onion, thin vermicelli, cucumbers, tomatoes, Pasta Salad Vinaigretta dressing blend, vinegar, oil