We have made gyros using this method, and actually smoking a leg of lamb. It is a bit weird, but our preference is this method.
Everyone in my family enjoyed this, including Steve, Joshua, Cassidy and the Weber family. And it is very easy! Always a bonus!

Combine ground lamb with salt and spices in a medium bowl. Cover and refrigerate 1 hour.
Mince onion and garlic in food processor. Add cold meat mixture and bacon pieces; process until smooth, scraping down sides as necessary.
Preheat oven to 300˚F. With moist hands, shape meat mixture into a 8-inch long by 5-inch wide rectangle on a foil lined baking sheet. Bake for 30-35 minutes until center registers 155˚F on an instant read thermometer. Remove from oven and let rest 15 minutes before slicing.
Preheat broiler with oven rack adjusted to highest level. Slice loaf crosswise into ⅛-inch thick slices and arrange in a single layer on foil lined baking sheet. Broil 2 minutes until edges are crispy. Remove from oven and tent with foil.
Assemble gyros: Spread a thick layer of tzatiki sauce onto warm pita bread. Pile with gyro meat slices and top with thinly sliced onion and chopped tomato. I like to add feta cheese on top. Serve.
Ingredients
Directions
Combine ground lamb with salt and spices in a medium bowl. Cover and refrigerate 1 hour.
Mince onion and garlic in food processor. Add cold meat mixture and bacon pieces; process until smooth, scraping down sides as necessary.
Preheat oven to 300˚F. With moist hands, shape meat mixture into a 8-inch long by 5-inch wide rectangle on a foil lined baking sheet. Bake for 30-35 minutes until center registers 155˚F on an instant read thermometer. Remove from oven and let rest 15 minutes before slicing.
Preheat broiler with oven rack adjusted to highest level. Slice loaf crosswise into ⅛-inch thick slices and arrange in a single layer on foil lined baking sheet. Broil 2 minutes until edges are crispy. Remove from oven and tent with foil.
Assemble gyros: Spread a thick layer of tzatiki sauce onto warm pita bread. Pile with gyro meat slices and top with thinly sliced onion and chopped tomato. I like to add feta cheese on top. Serve.