Roll the ground beef into 1 inch balls, placing them inside your electric pressure cooker in a single layer. It's okay if the meatballs touch.
Sprinkle the meatballs evenly with garlic powder, sea salt, and black pepper. Then pour the barbecue sauce on top. Place the lid on the cooker and make sure the pressure knob is in the SEALING position. Using the display panel select the MANUAL/PRESSURE COOK function, high pressure, and use the +/- buttons until the display reads 5 minutes.
When the cooker beeps to let you know it’s finished, switch the pressure knob from the SEALING to the VENTING position, causing a quick pressure release. Use caution while the steam escapes—it’s hot.
Serve warm alongside your favorite leafy green salad.