Melt the butter in a large skillet or deep pan with a lid over medium heat.
Season the chicken breasts with salt, pepper, and 2 teaspoons Italian seasoning.
Sear the chicken for 1–2 minutes per side until lightly golden. The chicken does not need to be fully cooked.
Transfer the chicken to a plate.
Add the uncooked rice, chicken broth, lemon juice, and remaining Italian seasoning to the same pan without cleaning it.
Stir gently to combine.
Return the chicken to the pan, placing it on top of the rice.
Cover with a lid and reduce the heat to medium-low.
Simmer for 20–25 minutes until the rice is tender, the liquid is absorbed, and the One Pot Lemon Herb Chicken and Rice is fully cooked.
Garnish with chopped parsley or cilantro and serve with fresh lemon wedges.