Cook the chickpea pasta in a large pot of boiling salted water according to the package instructions until al dente.
Drain the pasta and immediately rinse with cold water to stop the cooking process and cool the noodles.
Place the frozen peas in a colander and rinse with warm water for 30 seconds to thaw, then drain well.
Finely dice the red onion and the celery stalk into small, uniform pieces for consistent texture.
In a large mixing bowl, whisk together the avocado oil mayonnaise, Dijon mustard, dill relish, hot sauce, lemon juice, dried dill, salt, and pepper.
Drain the canned tuna thoroughly and flake it into the bowl with the dressing using a fork.
Add the cooled pasta, thawed peas, diced onion, and celery to the bowl.
Gently fold all ingredients together until the pasta is evenly coated in the creamy dressing.
Refrigerate for at least 30 minutes before serving to allow the flavors to meld, or portion into airtight containers for meal prep.