01 -
Finely dice the onion and mince the garlic. Chop chicken breasts into even pieces if whole. Season chicken liberally on both sides with salt and freshly ground black pepper.
02 -
In a large skillet over medium heat, add olive oil. Sauté onion and garlic for 2 to 3 minutes until softened and fragrant. Add chicken pieces and cook 6 to 7 minutes per side, allowing a golden-brown crust to form. Avoid flipping too frequently.
03 -
In a small bowl, whisk together melted butter, Dijon mustard, lemon juice, and lemon zest until fully combined.
04 -
Pour prepared sauce into the skillet with the browned chicken. Cook, stirring, for 2 to 3 minutes until sauce thickens slightly and evenly coats the chicken pieces.
05 -
Bring a large pot of salted water to a boil. Add orzo pasta and cook according to package directions, typically 8 to 10 minutes until al dente. Drain well and return to the pot.
06 -
While orzo is still hot, add crumbled feta cheese, stirring gently until the cheese melts and combines with the pasta, forming a creamy texture.
07 -
Serve orzo with feta on each plate, top with pan-fried chicken and spoon over lemon butter mustard sauce. Garnish with fresh chopped parsley or basil if desired.