Default view for all routing in laravel

I'm starting with laravel. Now have created an admin Panel design. I want to display one view (menu in the left side for admin Panel) in default for all routings started on /admin

Then load the content of the container depending on the route. Do I have to set in all routes my view for left side or I can set it "globally" for all routes?

Laravel version I'm using is 5.7

via Chebli Mohamed