Found this recipe originally via Pinterest, posted on www.realsimple.com. I've made this dish several times since finding it and it's always delectable! So easy too with just slicing the chicken sausage instead of having to deal with raw meat.
Cook the pasta according to the package directions, adding the green beans and peas during the last 3 minutes of cooking. Reserve 1 cup of the cooking water; drain the pasta and vegetables and return them to the pot.
Meanwhile, heat the oil in a large skillet over medium-high heat. Add the sausage and cook, turning occasionally, until browned, 6 to 8 minutes.
Add the sausage, pesto, Parmesan, and ½ cup of the reserved cooking water to the pasta and vegetables and toss to combine (add more cooking water if the pasta seems dry).