I go by the small jar size that you can buy at the supermarket, to make it easier to tell you amounts...

Morning - 1 full jar, usually rice cereal with 1/2 banana

Lunch - 1 full jar of pureed fruit (pear and peaches lately) Sometimes its a bit more than the jar size.

Tea - 1 1/2 jar sizes of Vegies (pumpkin, carrot, potato, sweetcorn mix) I add onion or chicken etc sometimes for different tastes. Depends what I am cooking for tea.