Convenience food is commercially prepared food, Products designated as convenience foods are often preprepared food stuffs that can be sold as hot, ready-to-eat dishes; as room temperature, shelf-stable products; or as refrigerated or frozen products that require minimal preparation, typically just heating, by the consumer.
These products often are sold in portion controlled, single serve packaging designed for portability for “on-the-go” or later eating. Convenience food can include products such as candy, beverages such as soft drinks, juices and milk, fast food, nuts, fruits and vegetables in fresh or preserved states; processed meats and cheeses, and canned products such as soups and pasta dishes.
source : Wikipedia