Bring a pot of salted water to a boil and cook the whole grain pasta according to package directions until al dente.
Reserve 2 tablespoons of the pasta cooking water before draining the noodles.
While pasta cooks, season the chicken breast with half of the sea salt and black pepper.
Heat olive oil in a skillet over medium heat and sauté the chicken until golden and cooked through, about 5-6 minutes per side.
Remove chicken from the pan, let it rest for 2 minutes, then slice into thin strips.
In the same skillet, add the minced garlic and sauté for 30 seconds until fragrant.
Reduce heat to low and whisk in the Greek yogurt, parmesan cheese, lemon juice, and the reserved pasta water to create a creamy sauce.
Add the cooked pasta and sliced chicken back into the skillet, tossing well to coat in the sauce.
Season with the remaining salt and pepper, and garnish with freshly chopped parsley before serving.