Bring a large pot of salted water to a boil and cook the chickpea pasta according to package directions until al dente.
In a small bowl, whisk together the whole egg, liquid egg whites, and grated parmesan cheese until well combined.
In a large skillet over medium heat, sauté the diced pancetta until golden and crispy, approximately 5-7 minutes.
Add the minced garlic to the skillet with the pancetta and cook for 1 minute until fragrant.
Add the spiralized zucchini to the skillet and sauté for 2 minutes until just tender but still firm.
Reserve 0.25 cup of the pasta cooking water, then drain the pasta.
Turn off the heat in the skillet and add the hot pasta directly to the pancetta and zucchini mixture.
Quickly pour the egg and cheese mixture over the pasta, tossing constantly with tongs to create a creamy sauce without scrambling the eggs.
Add the reserved pasta water one tablespoon at a time if needed to reach a silky, smooth consistency.
Plate the carbonara immediately and top with the raw egg yolk, sea salt, and plenty of freshly cracked black pepper.