Almost all fruit and vegetables count towards your 5 A Day, so it may be easier than you think to get your recommended daily amount.
These only count once as part of your 5 A Day, no matter how many you eat -
Red Fruit and Vegetables
10 Radishes
2 tablespons of Cooked Rhubarb
1/2 a Bell Pepper
7 Strawberries
7 Cherry Tomatoes