Turn on your Instant Pot and set to 'Saute' function. When ready, add ground chicken and onions and cook until browned. This will take approximately 4-6 minutes.
Add in the garlic, potatoes and celery and cook for an additional 2-3 minutes. Turn your Instant Pot off.
Add broth, basil pesto, lemon juice, garlic pepper, Italian seasoning, red pepper flakes, and salt.
Turn your Instant Pot to 'Pressure Cook' or on Manual high and cook for 8 minutes.
When timer beeps, quick release pressure or 'Venting' to release steam fully.
Once the steam is fully released, remove the lip and stir in cream, Parmesan and kale. Continue to cook on warm or saute until the kale is soft or slightly wilted, about 5 minutes.
Top with optional bacon, if you prefer.
Serve and enjoy!!