Bring a large pot of salted water to a boil and cook the chickpea pasta according to package directions, reserving 0.25 cup of pasta water before draining.
While pasta cooks, heat olive oil in a large skillet over medium-high heat and add the diced chicken breast, seasoning with sea salt and black pepper.
Cook the chicken until golden and cooked through, then remove from the skillet and set aside.
In the same skillet, add the sliced mushrooms and sauté until they release their moisture and turn a deep golden brown.
Add the minced garlic to the mushrooms and cook for 1 minute until fragrant.
Reduce the heat to low, then stir in the Greek yogurt, reserved pasta water, and truffle oil to create a smooth, creamy sauce.
Return the chicken to the skillet and add the cooked pasta, tossing everything together until well coated.
Serve immediately topped with grated parmesan cheese and fresh chopped parsley.