I work on the basis of trying to get at least 10 portions of F&V per day - but 1 portion is a handful of berries or nuts, or a handful of veg. I count a whole apple as a portion but probably should be 2.
A lot of my meals, when I am eating healthily, tend to be stirfry type dishes, with a handful of this and a handful of that from the fridge - so not a whole "5-a-day" portion in the dish, but plenty of 10 a day ones. (Pasta or rice dishes, or perhaps a sautéed veg dish as a side to meat and spuds meals).
I also aim for lots of colours - so a dish of onion, garlic, mushrooms, courgette, red pepper, yellow pepper and some peas counts as 7 if I put 2-3 tablespoons on my plate. Add a tin of tomatoes (to make it a pasta sauce) and it becomes 8.
And my lunch salads are (all raw):
2 carrots - chopped in big chunks
Half an avocado
Half a red or yellow pepper, or a mix
4-6 cherry tomatoes
Handful of sugarsnap peas
Maybe 4 leaves Cos lettuce
6-8 olives (sometimes just 1 colour, sometimes a mix)
A couple of radishes if I have any
That makes 8+ servings in my counting.
I only ever count 1 portion of nuts though, no matter how many or variety of types I have in a day (almonds, cashews, peanuts, hazelnuts and pistachios are all likely enough).
And no matter how big a glass, fresh fruit juice is only 1 as well.