Slice onion thin and sauté in skillet over medium heat for 5-7 minutes until softened and slightly browned.
Season chicken breasts with salt, pepper, garlic powder, and onion powder in pressure cooker pot or baking dish.
Layer sautéed onions evenly over each piece of chicken.
Brush BBQ sauce on top of each chicken breast.
Sprinkle shredded cheddar cheese over the sauced chicken.
Close pressure cooker lid, set to seal, and cook on high pressure for 10 minutes.
Allow natural release to finish cooking and retain moisture.
Top cooked chicken with crumbled bacon and chopped green onions before serving.
Notes
Store leftovers in an airtight container for up to 4 days in the refrigerator or freeze for up to 2 months. Reheat gently with a splash of broth for best texture.