Hi there!
I am very pleased you want help!
I am new to the forum!!
I am a recovering anorexic and it is going quite well. I'm attending an eating disorder clinic (initially against my will) and they have explained to me the calories etc... I need to put on weight steadily (around 1lb a week).
Breakfast - 2 slices toast with spread or bowl of cereal
Snack - Yoghurt/pancake/scone/bun/crisps etc...
Lunch - Sandwhich with protein filling (ham, chicken, cheese) and with butter or mayo, followed by a lighter desert (yoghurt/apple etc...)
You need a source of carbohydrate, dairy and protein
Snack 4pm - SAME AS FOODS AS SNACK BEFORE carbohydrate
Dinner - carbohyrates such as 2 small potatoes, rice, cous cous, pasta or bread
- source of protein such as sausage, 3 fishfingers, chicken breast, mince (2 ladels), steak, pork, fish
- vegetables
Dessert - cheesecake, custard
Supper - toast/ cereal/ tea and biscuits etc...
Keep your fluids up so you don't get dehydrated, milk is great and it also coats your stomach so you will belch less often!
Carbohydrates are good as they release energy and put on muscle rather than fat.
You need the 2-3 portions of protein to encourage muscle building so your strength increases
Vegetables are needed to get your vitamins so your nails and hair etc... will become stronger. Vit C is needed to absorb iron especially for muscle building and greens are great too.
Dairy is vital to maintain calcium as you don't want to lose bone mass. I have severe osteoporosis and i'm 16 so not fun!
One suggestion I have is to eat REALLY slowly chewing everything right down. You won't get as full as fast or feel bloated. Initially you might bloat slightly but that is only due to water retention it's not actual weight going on but it can be a bit frightening. Also, maybe avoid really spicey foods initially as they could result in indigestion.
Good luck and I hope you succeed!!