The [McRib] sandwich test-marketed very well in Nebraska and other Midwestern markets and was added to the restaurant’s permanent menu throughout the United States in 1981. Sales were mediocre, and it was removed after several years, only to be brought back as a limited time offering.
Take-out food is often fast food, but not always so. Whereas fast food carries the connotation of a standardized product from a globalized chain or franchise, take-away outlets are often small businesses serving traditional food, which is sometimes but by no means always of high quality.
In the United States the most popular condiment for fries is ketchup, so much so that consumption of restaurant fries drives ketchup sales.