Wash hands with soap and water.

Cook pasta according to package directions. Drain and cool.

In a small mixing bowl, whisk together vegetable oil, vinegar, Dijon-style mustard, and pepper to make vinaigrette.

In a large mixing bowl, combine pasta, beans, basil, and tomatoes. Pour vinaigrette over top and toss together. Cover and chill at least 1 hour.

If desired, add nuts and cheese just before serving, tossing again to combine.

Optionally, add other fresh chopped vegetables such as cucumbers, peppers, summer squash, carrots, broccoli, or cauliflower.