Set the Instant Pot to its saute function and wait for the "hot" notification. Spray the pot with nonstick cooking spray before add the minced garlic, onion, salt/pepper, and ground meat.
While the meat cooks, mix remaining sauce ingredients together in a bowl.
After your meat has browned, give it one last stir before adding your sauce to the top. DO NOT stir. Leave the sauce on the top, close the Instant Pot, and cook on manual for 10 minutes with a quick release.
The sauce should look thick and still be on top of your meat mixture, almost like the top of a meatloaf. Using a rubber spatula, fold the sauce into the meat, mixing well. It should lose its thickness and blend well.
Serve on your choice of bun or for a lower carb option, a bed of cauli rice or with roasted vegetables.