It's odd.Could be what your eating rather than how much.
Are you tracking your food intake?
I really don't eat a great deal.
Breakfast: porridge oats/bran and banana and an apple (every day....sucker for routine).
Lunch (generally) homemade soup and bread (actually, I think I'm actually doing 'porridge') - or a small sandwich and another apple.
Evening meal: usually pasta/sometimes oven chips with breaded chicken/fish or similar.
I get the feeling I'm maybe dropping my healthy standards in the evening - I used to cook 'proper food' most nights but since the separation I no longer do that (I enjoyed cooking for other people, not hugely 'assed' about cooking for myself.
Littered with teas and coffees throughout the day and a hot choc and small dessert last thing at night.
No drinks until the weekend when I'll have a bottle of wine over Saturday/Sunday with maybe one beer...
That's it.
It's slow dropping off but I still have excess flab and that's with going to the gym a few times a week.
Perhaps a full return to running with shift it....