Melt butter in a large skillet over medium-high heat. Add chicken and cook chicken 2-3 minutes on each side just until browned. Transfer chicken to prepared baking sheet.
In a small bowl whisk together chicken broth, lemon juice, honey, garlic, Italian seasoning, and salt and pepper.
Pour sauce over chicken. Bake 20-30 minutes (closer to 20 for smaller chicken breasts, closer to 30 for larger) until chicken is cooked through. Every 5-10 minutes spoon the sauce from the pan over the chicken.
Garnish with fresh rosemary and lemon slices if desired and serve.