Lima Bean Health Loaf

• 1 onion (chopped)
• 1 egg (beaten)
• 260 gr dry lima beans
• 240 ml skim milk
• 190 gr carrots (chopped)
• 130 gr soft wholewheat crumbs
• 100 gr thinly celery (sliced)
• 100 gr peanuts (chopped)
• 55 gr butter
• 40 gr flour