Turn on your Instant Pot and select the 'Saute' function on medium.
Add olive oil and chicken cubes. Saute chicken cubes until slightly cooked on all sides. NOTE: You do not need to cook the chicken thoroughly as it will continue to cook during the pressure cooking phase.
Once the chicken is cooked mostly on each side, spoon out of the Instant Pot into a bowl and set aside.
With the remaining oil still in the Instant Pot, add all peppers and onions. Saute until the peppers and onions are aromatic and start to soften, about 4 minutes.
Add garlic and continue to saute for an additional 2 minutes.
Next, select the 'Cancel' function to reset the cooking function.
Add chicken, Tequila, cilantro, chicken broth, salt, garlic pepper, lime juice, soy sauce and pasta into your Instant Pot. NOTE: When adding the pasta to the pot, be sure to add in layers by making a criss-cross design. This will help avoid the pasta from clumping together.
Place the lid on Instant Pot, turn on and select ‘Pressure Cook’ function on high. Cook for 9 minutes for a slightly al dente result. Cook for 10 minutes for a more soft noodle. NOTE: If for some reason you're pasta isn't cooked to your liking, you can also put the lid back on your Instant Pot and pressure cook again for 1-2 minutes.
Once pressure cook is complete, allow to naturally release for 3-4 minutes then slowly move the pressure release valve for quick release and allow steam to fully release.
Select the ‘Cancel’ function to turn off the pressure cooking, remove lip from Instant Pot and stir pasta in the natural sauce/water to break up the pasta. NOTE: do not panic if your pasta is not fully cooked. It will continue to cook as you add additional ingredients.
Add grated Parmesan cheese, half and half and stir until contents are combined well.
Taste and add any additional seasoning per your preference.
Serve and enjoy!
Garnish with limes, if desired.