In a large pot of salted boiling water, cook pasta until al dente, rinse under cold water and drain.
In a large bowl, combine the pasta, peas, broccoli, carrot, corn, tomatoes and bell peppers.
Prepare the dressing by whisking together the mustard, Italian dressing, vinegar, brown sugar, celery seed and basil. Pour over salad and mix well. Refrigerate until chilled.