Cook the Pasta and Broccoli:

Boil a large pot of salted water. Cook pasta until al dente, adding broccoli in the last 3 minutes. Drain.

Cook the Chicken:

Heat olive oil in a skillet over medium heat. Season the chicken with salt and pepper, then cook for 5-7 minutes until golden and fully cooked.

Prepare the Sauce:

In a mixing bowl, combine Dijon mustard, honey, lemon juice, and minced garlic. Mix well, then pour over the cooked chicken in the skillet.

Combine Pasta & Chicken:

Add the cooked pasta and broccoli to the skillet. Stir in lemon zest and butter until everything is well coated.

Serve:

Plate the pasta and chicken mixture, garnishing with parsley and optional grated Parmesan. Add lemon slices for extra freshness.