Preheat your oven to 400°F.
Mix dijon mustard, honey, smoked paprika, dried dill, minced white onion, minced garlic, and 2 tablespoons of olive oil in a bowl large enough for marinating chicken thighs. Stir well.
Add chicken thighs to the mixture and coat them evenly. Let the chicken marinate for at least 30 minutes.
Heat 2 tablespoons of olive oil in a large oven-safe skillet over medium-high heat. Once hot, add chicken thighs and the remaining marinade. Sear each side for 3-5 minutes.
In the last minute of searing, add butter and lemon slices to the skillet.
Remove chicken and lemon slices from the skillet. Add dried couscous and cook until toasted for about 2-4 minutes.
Pour in white wine to deglaze the pan. Bring to a boil.
Add chicken broth, lemon juice, and broccolini. Bring to a boil.
Return chicken thighs and lemon slices to the skillet. Season with salt and pepper.
Place the skillet in the oven and bake for 15 minutes, or until the chicken reaches an internal temperature of 160ºF – 165ºF.
Remove from the oven and let it rest for 5-10 minutes to allow the liquid to absorb into the couscous.
Fluff the couscous and top with fresh dill and crumbled goat cheese.