in a saute pan, over medium-high heat, heat olive oil for 30 seconds. Add garlic and heat for another 30 seconds.
add cubed chicken and 1/4 tsp of salt and 1/4 tsp pepper and saute for approximately 3 minutes, stirring occasionally. drain.
add all ingredients (excluding toppings) to the instant pot and stir. (make sure pasta is covered by liquid).
cover instant pot with lid and make sure the vent is set to Sealing. Set IP on Manual high pressure for 5 minutes. when done, use 5 minute natural release method (let IP go into warm mode for 5 minutes and then press cancel & release the rest of the pressure)
Carefully open lid and stir. Top with parsley, parmesan cheese and enjoy!