1

Place ground beef into a large bowl; add scallions, salt, pepper and sage and mix well together.

2

Divide meat mixture into 4 equal portions, and then divide each portion into 2, giving 8 portions of meat. Flatten each into a burger shape.

3

Place a slice of cheese on top of 4 of the burgers and top with the remaining 4, sealing with a little bit of water.

4

Heat grill and cook burgers about 4 minutes per side, or until done.

5

Serve on toasted rolls topped with another half slice of cheese, lettuce and tomato.