Breakfast for me is bowl of fruit & fibre with a weak tea, all with soya milk. Pehaps once a week I substitute 2 slices of lightly toasted 50/50 bread covered in butter and topped with half sugar marmalade and maybe once a month a full English breakfast for the fruit & fibre.
Lunch is usually a salad or something light with a modest Main meal in the evening.
I am partial to choc ices and have one most days and perhaps 1/2 bar of chocolate so I might have to cut back on these to lower my excess weight.
Also, I don't play sport as I once did so I am planning to do more exercise. The unfortunate thing is as you become more overweight, the less you are inclined to exercise and thereby put on weight so the spiral continues.
A professional gardener I know is very trim and fit. He eats virtually nothing for 2 days in 7. If all else fails, I might try this, perhaps fasting 1 day a week to start with and trying not to overeat on the other 5.