Begin by bringing a large pot of salted water to a rolling boil. Add the medium shells pasta and cook according to the package directions, usually about 8 minutes, until al dente. Once cooked, drain the pasta thoroughly and rinse it under cold water to stop the cooking process.

While the pasta is cooking, take a large mixing bowl and add the imitation crab meat, thawed frozen peas, chopped red onion, diced celery, and diced red bell pepper. Ensure the veggies are finely chopped.

Next, add the cooled pasta to the bowl with the seafood and vegetables. Pour in the mayonnaise and sprinkle in the fresh dill. Gently stir until everything is evenly coated and combined.

Taste the mixture and season it with salt and pepper according to your preference.

Cover the bowl tightly with plastic wrap and place it in the refrigerator. Let the Crab Pasta Salad chill for at least 1 hour.

Once chilled, remove the salad from the refrigerator. Give it a gentle stir and transfer it to a serving bowl. Garnish with freshly chopped chives.