I now skip breakfast. But before I started, I was concerned about doing that, so wrote up a number of "3 meal fast day plans". Here you go:
Breakfast
(1) 2 egg white omelet with dried herbs and black pepper (using spray oil) - 45 calories
(2) Forme brand (non-fat and artificial sweetener) fruit yoghurt - individual serving size - 50 calories
(3) Apple stewed with vanilla bean, cinamon and, if needed, 1 Spenda packet - 50/54 calories
Lunch
(1) Fish, tomato and spinach curry (see recipe on this board) - 205 calories
(2) Turkey Sandwich - 2 turkey slices (low fat deli brand), tomato, lettuce, 2 slices wholewheat bread and 1 tspn mustard. - Approx. 205 calories (depending on size of bread, turkey brand used).
(3) Steamed cod (180 grams = 150 calories) with dried herbs/salt pepper with steamed low calories vegetable or salad vegetable to value of 50 calories. Total = 200 calories
(4) Mushroom soup (see recipe on Recipe board) - 110 calories plus toast or crackers if have spare calories (another 70-80 calories). Total 180-190 calories
(5) Roasted Garlic and cauliflower soup (large bowl) - see recipe on recipe board - 130 calories
Dinner
(1) Bowl of chilli beef and vegetable (see recipe on recipe board) - 255 calories
OR other lunch options - see above.
Hope this helps show it is possible to have 3 decent meals even on 500 calories.