Fill a large pot with water and add a generous pinch of salt. Bring it to a rolling boil over high heat.
Add the pasta to the boiling water and cook according to the package instructions until al dente, typically 8-10 minutes.
Once the pasta is cooked, drain it in a colander. Rinse it under cold running water to stop the cooking process and cool the pasta quickly. Set it aside to drain completely.
Combine the cooked pasta, peas, celery, bell pepper, green onions, and cooked shrimp into the bowl. Toss gently to mix the ingredients evenly.
Make the Dressing: Add the mayonnaise, lemon juice, white vinegar, sugar, dried dill, salt, and black pepper into the bowl. Mix well until the dressing is smooth and well combined.
Pour the dressing over the pasta mixture. Gently toss everything together until all the ingredients are well coated with the dressing.
Cover the bowl with plastic wrap or a lid. Place it in the refrigerator for at least 30 minutes to allow the flavors to meld and the salad to chill.
Serve and Enjoy!