Mix the ground beef with some BBQ spice mix. Prep the Swiss cheese by cutting a block lengthwise so you have long strips about 1/2 inch on each side, make several long strips.

Lay out your sushi mat so that you can roll it away from you. Lay out the strips of bacon sided by side, pointing away from you, and about 1 inch from the left and right sides and about an inch or so from the end that is farthest from you.

Lay the ground beef on top of the bacon and pat down, maybe 1/2 inch thick, cover the bacon from the side closest to you and to the left and right, and stop at the end farthest from you, leaving about 2 inches of bacon visible. Form the edges tightly to make straight edges.

About 2 inches from the side closest to you, place a cheese strip from left to right so that it goes from the edge of the beef to the other side.

Use the mat to start a tight roll and roll it up. Repeat to make another roll. I am going to guess this would make two roll using a package of bacon and 500 grams of of beef.

You can cook this on a preheated grill over indirect heat or on a rack your oven heated to 180 C. Place the rolls on the grill and cover with the lid and cook for 25 minutes.

Remove the lid and brush on BBQ sauce of your choice. Cover and cook for 5 minutes, repeat, brushing one more time and cooking for another 5 minutes.

Carefully remove the rolls from grill and set on a plate to rest for 5 minutes, then cut into thick slices with additional BBQ sauce on the side for dipping.