Bring a large pot of salted water to a boil and cook the chickpea pasta according to package directions until al dente.
While pasta cooks, heat a large skillet over medium heat and add the diced pancetta, sautéing until it becomes golden and crispy.
In a small bowl, whisk together the whole egg, egg whites, grated parmesan cheese, and black pepper until well combined.
Add the minced garlic and green peas to the skillet with the pancetta, cooking for 2 minutes until the peas are bright and tender.
Reserve 0.25 cup of pasta water, then drain the pasta and add it directly to the skillet, tossing to coat with the pancetta and peas.
Remove the skillet from the heat and quickly stir in the egg mixture and reserved pasta water, tossing constantly to create a silky, velvety sauce.