For me, I set MyFitnessPal to maintenance, which gives me around 1500 calories on nonfast days (NFDs). I try to keep my carbs at around 100-150g per day - nothing to do with 5:2, just how my body works best. I might eat more if I've exercised. Within that I'll have
breakfast: choice of eggs, one slice toast with peanut butter, yoghurt with berries, porridge/ overnight oats.
lunch - homemade soup or stew - I make a batch at weekends and keep single portions in the freezer.
Dinner- stirfry, fish pie, lamb tagine, anything really. I keep my portion of carbs small.
Fast Days (FDs) - I've found it best to eat as little as possible during the day, so I comsume a lot of water, herbal teas, black coffees. I'll have a miso soup at lunchtime and maybe a satsuma mid-afternoon. Dinner is protein and veg based, so could be prawn salad, scallops and courgette ribbons in tomato sauce, chicken breast with asparagus. There's a great recipe thread in this section with LOADS of ideas for FDs. When inspriation fails there's always an omelette, or a tin of soup.
But this is a really flexible way of eating - don't feel you have to conform to a set of rules. You can eat anything you like, as long as you watch the portion size and calories.
Ha! You should see the amount of food I ate yesterday, including ice-cream, cheesy tapas bites, and licorice allsorts. To be fair, I was doing a 5 mile training run in the evening so that sort of cancelled it out.
Actually "amount" is very important - you can eat whatever you want, just not unlimited quantities of it.