If you are unsure when a Vegetable is in Season you can check on this website:
Or if it is not on that list you can google the name followed by “NZ Season”.
If you would like to use a Vegetable which is out of season it may be available in the Frozen Section of the Supermarket, for example, Spinach and Mango.
For some info on a balanced diet see:
Here are two links which show some info on which ingredients can replace Meat: