Add the green beans and pasta to the
potatoes cooking in boiling water
If you are using
fresh pasta, give the green beans about 5 minutes
to cook before you add the pasta
Cook all until
pasta is al dente, at which time the vegetables
should be properly cooked.
While the pasta is cooking, place the pesto in a
shallow serving bowl
Drain pasta, reserving some
pasta water
Transfer the cooked pasta, green
beans, and potato to the serving bowl containing
the pesto, and toss
Add 1 to 2 tablespoons of
cooking water, if necessary, to enable the pesto to
coat the pasta