Roll each bison mini-log in a large leaf, folding in sides first and then rolling from core to leaf-edge
Place the cabbage bottom halves in the bottom of an Instant Pot, arrange the rolls on top / around them
Scatter chopped tomatoes over top. Add extra cabbage, if you are making more than 2 servings)
Set the Instant Pot to 17 minutes on high pressure. When the timer goes off, let the pot slow-release for 15 minutes. [if using a regular pressure cooker, just bring it to high pressure and cook for 17 minutes, then remove from heat and slow-release for 15)
Serve two rolls and one of the cabbage bottom halves for each serving
Try using the excess juice in the bottom of the pot as a bonus soup appetizer