Follow the link below to a website that has a month of healthy lunch box menu ideas:
http://www.food.gov.uk/news/newsarchive/2004/sep/lunchbox2

Top tips for a healthy lunch box

• Please remember that the school is "nut free", as we have a number of pupils with nut allergies, so please don't include anything that has nuts in the ingredients.
• Base the main part of the lunch on starchy foods like bread, cereal, rice, pasta or potatoes.
• Get creative with some alternatives to sandwiches, for example, wholemeal pitta pockets, tortilla wraps or pasta salad.
• Include some protein such as lean meat, chicken, tuna, ham, cheese, egg or
  houmous.
• Aim to have at least one fruit or vegetable based food or drink in the lunch box
  to count towards your child’s five fruit and vegetable portions a day.
• Add a portion of semi-skimmed milk or other dairy food such as cheese or
  fromage frais.
• Try a variety of different drinks such as a carton of fruit juice, water, yogurt drink or milk drink.
  Put a cool pack or a frozen drink in the lunch box to keep it cool.
• The school is committed to heathy eating and so crisps and chocolate cannot be included in packed lunches - thank you!