Cheesy mashed potatoes are great when served with Classic Meatloaf.
Place potatoes in a medium saucepan. Cover with cold water by 1 inch; add 1 teaspoon salt. Bring to a boil; reduce to a simmer, and cook until potatoes are tender, 15 to 18 minutes.
Drain and return potatoes to pan. Stir potatoes over medium heat until dry (a film of starch will form on bottom of pan), about 1 minute. Remove from heat.
In a small saucepan, bring milk and butter to a simmer over medium heat; pour half of milk mixture over potatoes. Mash potatoes until just smooth, gradually adding enough of remaining milk mixture to reach desired consistency. Mix in cheddar; season with salt. Garnish with more cheese, if desired.