Juices
To meet your 5-9 pieces of fruit and vegetables per day, you can squeeze the produce instead of peeling them and eating them by hand. This also means that you can consume the largest part of the required nutritional elements you need for a day in just 10 minutes.
The best way to consume fruit is raw, with its skin or with the skin peeled off on an empty stomach or 20 minutes before other meals. If you're not such a fruit-eater and want to have more from the good stuff, the best way to start eating fruit is to squeeze fruit juices. In this way you can get used to fruit and after drinking juices for a while you'll see that your appetite to have raw fruits will increase.