While pasta cooks, microwave sweet peas. Mix all but ¾ cup of peas with pesto and olive oil in a food processor until smooth. Add pesto mixture and reserved peas to cooked pasta. (You can also add some cheese, if you please.)
3. Easiest Creamy Marinara Pasta with Chicken Sausage
Bring cooked chicken sausage, tomatoes and heavy whipping cream to a boil in a 6-quart stockpot and simmer for about 10 minutes. Toss the sauce with cooked pasta and just like that, dinner is done!