How much should an 8 month old eat?

Please consult an expert on this. An example from a babyfood website follows three times a day: 200 ml formula or breastfeeding at 8 months they can eat some "solid" food (pureed to start with): dinnertime: 3 tablespoons of vegetables; 2 tablespoons of potato/white rice 1 tablespoon of meat/chicken/fish/egg (pureed) also don't forget to let them drink some water