Bring a large pot of salted water to a boil and cook the chickpea pasta until al dente, reserving 1/4 cup of the pasta water before draining.
While the pasta cooks, heat the olive oil in a large skillet over medium heat and sauté the diced pancetta until it begins to crisp.
Add the diced chicken breast to the skillet with the pancetta and cook until golden brown and cooked through, about 5-7 minutes.
In a small bowl, whisk together the egg, grated parmesan cheese, and black pepper until well combined.
Add the minced garlic to the skillet with the chicken and pancetta, cooking for 1 minute until fragrant.
Turn off the heat on the skillet and add the drained pasta, tossing to combine with the chicken and pancetta.
Slowly pour the egg and cheese mixture over the pasta while tossing constantly, adding a splash of reserved pasta water as needed to create a silky, creamy sauce.
Season with sea salt to taste and garnish with fresh chopped parsley before serving immediately.