Outdoor Kitchen
If you look just at the left side part of this layout, maybe something along these lines on the back side of the fireplace where you have the table now. Make that the whole cooking and eating area? Again, though, you have to think about mosquitoes and overhead cover. Maybe something like this with a screened room built around it?
This one looks like it has an overhang like yours (bigger obviously) and then they added a screened in area which you could maybe do on the other side of the fireplace where you would have the kitchen and the table so that you could eat with an overhead cover and be free from mosquitoes which are such a problem for you.
Den windows
Q