Pesto from a jar can be improved, and once you know how easy it is, you will upgrade it every time you make it. Just a few ingredients — cream, butter (Julia Child would approve) and Parmesan cheese — and you’ve got what is quite possibly the best meal to come (almost entirely) from the pantry in a very long while.
Of course, you could dress this up with some protein or some fresh cherry tomatoes or serve it with a salad created from baby arugula and a lemon vinaigrette. The pepperiness of the greens would contrast nicely with the creaminess of the pasta, all while staying in the same color family. But, the truth is, this pesto pasta is the star of the show, and no one is going to complain about that (even though it took you less than 20 minutes to make).