PLACE potatoes in large saucepan. Cover with water; bring to a boil. Cook over medium-high heat for 15 to 20 minutes or until tender; drain.
RETURN potatoes to saucepan; add evaporated milk and butter. Beat with hand-held mixer until smooth. Season with salt and ground black pepper.
NOTE: Chopped green onions, chopped parsley or cooked, crumbled bacon may be added to mashed potatoes.
FOR MUSHROOM MASHED POTATOES:
PREPARE potatoes as above. Melt butter in saucepan; add 1 clove finely chopped garlic and 8 ounces finely chopped mushrooms. Cook over medium heat for 4 to 5 minutes or until liquid has evaporated.
ADD potatoes and evaporated milk; beat potatoes with hand-held mixer until smooth and thoroughly mixed with mushrooms. Season with salt and ground black pepper.