Bring a medium pot of salted water to a boil and cook the chickpea pasta according to package instructions until al dente.
While the pasta cooks, season the chicken breast evenly with sea salt, black pepper, and garlic powder.
Heat the extra virgin olive oil in a non-stick skillet over medium-high heat.
Add the chicken to the skillet and sear for 5-6 minutes per side, or until the internal temperature reaches 165°F.
Remove the chicken from the pan, let it rest for 2 minutes, then slice into bite-sized strips.
Reserve 2 tablespoons of the pasta cooking water, then drain the pasta.
In the same skillet used for the chicken, combine the cooked pasta, sliced chicken, sun-dried tomato pesto, baby spinach, and reserved pasta water.
Toss over low heat for 1-2 minutes until the spinach is just wilted and the sauce is creamy and well-distributed.