Bring a large pot of water to a boil and add in 1 tablespoon of salt and the 2 cups of raw pasta. Cook as per the directions on the package and then drain. Place the cooked pasta in a dish and place in the refrigerator to cool.
While the pasta is cooking, drain the beans and prepare the corn, celery, bell pepper, and radishes. Place them in a large bowl, which can also accommodate the cooked pasta.
In a separate bowl, whisk together all of the Dressing Ingredients until smooth.
Add the cooled pasta to the large bowl with the vegetables. The pasta does not have to be totally cold, as long as it is at room temperature.
Drizzle all of the dressing into the bowl with the pasta and vegetables. Gently fold everything together until well combined and coated.
Cover the bowl with a lid or with plastic wrap and place the prepared pasta salad in the refrigerator until completely cooled.