1 Bring a large pot of water to aboil.
2 Meanwhile, in a food processor blend the cream cheese, yogurt, lemon juice, lemon zest (if using) and pepper until smooth. Stir in the dill.
3 Add the pasta to the boiling water and cook until al dente, 10 to 12 minutes, or according to package directions.
4 Place the frozen peas in a colander and when the pasta is done, pour the pasta and boiling water over the peas.
5 Transfer the pasta and peas to a serving bowl. Add the salmon and lemon-dill sauce and toss gently.