FOOD - MEAL - DISH

Can you distinguish those three words?
FOOD (comida) is a generic term describing anything you can eat. It may refer to certain types of food:
- frozen food (comida congelada)
- canned food (comida enlatada)
- spicy food (comida picante)
- cat/dog/baby (comida para gatos ...)
- Italian/Chinese ... food (comida italiana, etc.)
- junk/fast food (comida rápida)

DISH (plato cocinado)  refers to something prepared to be eaten. For instance, 'the typical dishes in Spain are paella and tortilla".
MEAL (comida - evento) may refer to the occasion when food is eaten or the food which is eaten on such an occasion. For example, 'doctors recommend at least five meals a day'.