2 ideas
1. Shorten your eating window, e.g only eat between say 12 and 6 pm. Same amount of food as now, just over 2 meals rather than 3.
2. Implement some exercise after each meal, walk for 20-30 minutes or do something more strenuous if you can.
The aim is to give your body more time to burn what you've put into it before you put more in again.
Trouble with bg is there's so many variables that can affect it. If you are wanting quick results you Implement both ideas at once but then you won't know which is having the best effecf