Bring a pot of salted water to a boil and cook the whole wheat fettuccine according to package directions until al dente.
While the pasta cooks, place the broccoli florets in a steamer basket over boiling water for 4-5 minutes until bright green and tender-crisp.
Season the chicken breast with sea salt and black pepper.
Heat the olive oil in a large skillet over medium-high heat and sear the chicken for 6-7 minutes per side until cooked through and golden.
Remove the chicken from the skillet, let it rest for 2 minutes, then slice into thin strips.
In the same skillet, reduce heat to low and add the minced garlic, sautéing for 30 seconds until fragrant.
Whisk together the Greek yogurt, almond milk, and parmesan cheese in a small bowl, then pour into the skillet.
Stir the sauce constantly over low heat until warm and smooth, being careful not to let it boil.
Add the cooked pasta, steamed broccoli, and sliced chicken to the skillet, tossing gently to coat everything in the creamy sauce.
Serve immediately, garnished with an extra pinch of black pepper if desired.