Yukon Gold potatoes can replace russet potatoes for an especially buttery, naturally creamy mash.
If the pan sauce reduces too much, add a small splash of chicken broth. If it's too thin, let it simmer uncovered for another minute or two before returning the chicken.
Fresh thyme or rosemary can replace dried herbs. Because fresh herbs are less concentrated, use a larger quantity and adjust according to taste.
Steamed green beans, roasted broccoli, carrots, asparagus, or a crisp green salad make excellent vegetable sides.