National Egg McMuffin Day is celebrated on March 2 in the United States, highlighting the popular breakfast sandwich that features an egg, melted cheese, and ham on a toasted, buttered English muffin. This day encourages people to enjoy a filling breakfast, which is seen as a great way to combat the start of the week. The Egg McMuffin, credited as the first breakfast sandwich, was invented by Herb Peterson and Donald Greadel while attempting to create a fast-food version of eggs Benedict. The name "Egg McMuffin" was suggested by Patty Turner, the wife of a McDonald's executive. The sandwich's introduction marked a significant shift for McDonald's, expanding its menu beyond burgers to include convenient morning options.