Preheat oven to 400°F and line a baking sheet with parchment paper.
Dice the chicken breast, zucchini, and bell pepper into bite-sized pieces.
Place chicken and vegetables on the baking sheet, drizzle with olive oil, and season with salt, pepper, and oregano.
Roast for 18 minutes until the chicken is cooked through and vegetables are tender with golden edges.
While roasting, boil the chickpea pasta in salted water according to package directions, then drain.
In a large bowl, combine the cooked pasta, roasted chicken, and vegetables.
Stir in minced garlic, fresh parsley, and lemon juice, tossing well to coat everything in the aromatic juices.