Set your Instant Pot to saute.
Add sesame oil, soy sauce, brown sugar, ginger, pepper, and garlic and whisk together.
Add roast and seer the roast slightly on each side
Close your instant pot. Seal and cook on high pressure for 90 minutes.
Remove Instant Pot lid and shred meat.
Remove a few cups of excess liquid from your pot and discard it.
Add 1/2 cup of Korean BBQ sauce
Build your lettuce wrap and enjoy!