White Bean Pesto Pasta
1. Prepare pasta in boiling salted water according to package directions. Drain and reserve 1 cup cooking liquid.
2. Place warm pasta in a large bowl. Add pesto and mix well. Add cooking liquid, 1 tablespoon at a time, to reach the desired consistency of a creamy sauce.
3. Add beans. Toss gently, so beans remain intact. Taste for seasoning and adjust if necessary. Serve immediately with Parmesan, if desired.