Preheat your oven to 400°F and line a baking sheet with parchment paper.
Toss the broccoli florets with half of the olive oil and a pinch of sea salt, then roast for 15 minutes until the edges are crispy and charred.
While the broccoli roasts, cook the brown rice pasta in boiling water according to package directions, reserving 2 tablespoons of the pasta water before draining.
Season the chicken breast with sea salt and black pepper, then sear in a skillet with the remaining olive oil over medium heat for 6-7 minutes per side until fully cooked.
In a small bowl, whisk together the Greek yogurt, grated parmesan cheese, minced garlic, and lemon juice to create the sauce base.
Slice the cooked chicken into bite-sized strips.
Return the drained pasta to the skillet over low heat, adding the yogurt sauce, reserved pasta water, roasted broccoli, and sliced chicken.
Toss everything together gently for 1 minute until the sauce is creamy and coats the pasta evenly.