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, season the chicken breast with half of the sea salt and black pepper.
Heat the extra virgin olive oil in a large skillet over medium-high heat and sear the chicken until golden and cooked through, then remove and slice into strips.
In the same skillet, add the sliced shallot and mushrooms, sautéing until the mushrooms are browned and the shallot is translucent.
Add the minced garlic to the skillet and cook for 1 minute until fragrant.
In a small bowl, whisk together the Greek yogurt, truffle oil, and 2 tablespoons of the pasta cooking water until smooth.
Lower the skillet heat to low, add the cooked pasta and sliced chicken back to the pan, and pour in the yogurt mixture.
Toss everything together gently until the pasta is coated in the velvety sauce, then garnish with fresh parsley and the remaining sea salt and pepper.