Miso paste is the only real hurdle here—you'll need to find it at Harris Teeter's international aisle or make a separate trip to an Asian market, which adds friction to a weeknight. The rest of the ingredients are staples at any Charlotte chain, and potatoes, butter, and milk keep costs under $8 for six servings. The 30-minute time is honest for boiling, draining, and mashing, though first-timers should know that miso can seize if you add it to boiling-hot potatoes, so let them cool slightly. This is a quiet, unfussy side that reheats perfectly and plays well with roasted chicken or pork—exactly the kind of dish that works for a family dinner, and the umami from the miso elevates it above ordinary mash without any real technique.