Getting back to your original worry about quarantine regulations with fruit and veg ...
When we can't carry fresh vegetables, I use instant mash (various brands including Deb) and just add the water, etc, until I get the consistency and flavour I like.
The other thing I do is make good thick vegetable soups, freeze in meal-size serves, then cryovac. Some nights just have a bowl of soup then the meat in bread rolls, or wrapped in Mountain Bread instead of ordinary meat & veg meals. Or I stir the instant mash potato through the soup and serve it up as 'bubble & squeak'. You can also throw spoon-fulls of this mixture onto the frypan or BBQ plate to make a kind of hash brown. I told the grandchildren they're "special camping vegetables". It's got it's own flavour, so don't try and compare it to the taste of freshly cooked vegetables. If the children will eat it, it makes an easy meal.
Blanching and then cryovac packing vegetables is also an acceptable way to carry them and not contravene the quarantine regulations. But be guided by your user manual as some vegetables do not keep well packed this way - they give off gases and spoil.
