A mash is a mixture of ingredients that have been crushed or mashed together, often with the addition of liquid, to create a soft and smooth consistency. This can be used as a base for dishes such as mashed potatoes or mashed vegetables.
A meal, on the other hand, refers to a complete serving of food that is consumed at a specific time, typically consisting of multiple dishes or courses. A meal can include a variety of different components such as proteins, carbohydrates, vegetables, and sauces, and is meant to provide a balanced and satisfying eating experience.