Boil chickpea pasta in salted water according to package specifications until al dente, typically 7-9 minutes.
Drain pasta and rinse immediately under cold running water to arrest the cooking process and prevent sticking.
In a primary mixing bowl, whisk together Greek yogurt, lemon juice, olive oil, oregano, garlic powder, salt, and pepper until the emulsion is homogenous.
Integrate the cooled pasta, diced chicken, edamame, bell pepper, cucumber, and red onion into the mixing bowl.
Fold the ingredients using a spatula until the dressing is uniformly distributed across all surfaces.
Cover and refrigerate at 40°F (4°C) for a minimum of 30 minutes to facilitate flavor integration before service.