Bring a large pot of salted water to a boil and cook the chickpea pasta according to package directions, reserving 0.25 cup of the cooking water before draining.
While the pasta is boiling, heat the olive oil in a large skillet over medium-high heat.
Season the sliced chicken breast with half of the sea salt and black pepper, then add it to the skillet and cook until golden brown and cooked through.
Remove the chicken from the skillet and set aside on a plate.
In the same skillet, add the sliced cremini mushrooms and minced shallots, sautéing for 5-7 minutes until the mushrooms have released their moisture and are deeply browned.
Add the minced garlic to the mushrooms and cook for an additional 30 seconds until fragrant.
Lower the heat to medium-low and return the cooked chicken and pasta to the skillet.
In a small bowl, whisk together the nonfat Greek yogurt, truffle oil, and the reserved pasta water until a smooth sauce forms.
Pour the truffle sauce over the pasta mixture and toss gently until every noodle is coated in the glossy glaze.
Garnish the dish with chopped fresh parsley and the remaining sea salt and black pepper before serving immediately.