Select your favorite pure beef burgers and hamburger buns.
While the beef burgers are still frozen, marinate both sides with Tabasco sauce.
The sauce will stay put as it freezes directly on the surface.
The burgers should then be grilled.
Meanwhile, heat oil in a medium skillet.
Add onions or shallots and garlic, oregano, thyme, salt, pepper, and cook 10-15 minutes until onion is slightly caramelized, push aside.
When almost done, put 2 thick slices of real Greek feta-cheese.
Let the cheese fry with the onions for the last couple of minutes.
Before putting the feta on the burger, cover it with a few thin slices of onions and garlic.
Ready in 20 min.