Bring a pot of salted water to a boil and cook the chickpea pasta according to package directions until al dente.
Before draining the pasta, carefully reserve 2 tablespoons of the starchy pasta water and set it aside.
While the pasta cooks, dice the chicken breast into bite-sized pieces and season with sea salt and black pepper.
Heat the olive oil in a large skillet over medium-high heat and sauté the chicken until golden brown and cooked through.
Reduce the heat to medium, add the minced garlic and red pepper flakes, and cook for 1 minute until fragrant.
Add the fresh spinach to the skillet and toss until just wilted, then remove the pan from the heat.
In a small bowl, whisk together the Greek yogurt, grated parmesan, and the reserved pasta water to create a smooth sauce.
Add the cooked pasta to the skillet with the chicken and spinach, then pour the yogurt sauce over the top.
Toss everything together gently until the noodles are thoroughly coated in the creamy sauce and serve immediately.