Bring a large pot of salted water to a boil and cook the chickpea pasta according to package directions; drain and set aside.
Season the chicken breast with sea salt and black pepper, then sear in a non-stick skillet over medium-high heat until cooked through and golden.
Remove the chicken from the pan, slice into thin strips, and set aside.
In the same skillet, add the sliced cremini mushrooms and minced garlic, sautéing until the mushrooms are tender and browned.
Deglaze the pan with the chicken broth and stir in the nutritional yeast, simmering for 2 minutes to create a light, savory sauce.
Add the cooked pasta and chicken strips back into the skillet, tossing thoroughly to coat everything in the sauce.
Remove the skillet from the heat, drizzle with truffle oil, and garnish with chopped fresh parsley before serving.