Sheet Pan Honey Horseradish Chicken and Asparagus

about 3 or 4 boneless skinless chicken breasts (about 1.50 pounds total)

olive oil, plus more for drizzling over asparagus

honey

horseradish (I use prepared creamy refrigerated)

Kosher salt, or to taste; plus more for asparagus

freshly ground black pepper, or to taste; plus more for asparagus

to 2 pounds fresh asparagus, trimmed (read blog post for explanation)

to 3 tablespoons finely chopped fresh parsley (regular or flat-leaf Italian), optional for garnishing