Vocabulary
Food: something that people and animals eat to keep them alive: There was lots of food and drink at the party.
Dish: food prepared in a particular way as part of a meal: a chicken/vegetarian dish.
Meal: an occasion when food is eaten, or the food which is eaten on such an occasion: I have my main meal at midday. You must come round for a meal sometime
Food: source/supply/ shortage
Organic/ convenience food
A(n) elaborate/ simple dish-meal
A balanced/ filling/ light/ heavy meal