Warm up the Ninja Foodi using the saute function to high.
Add in the ground beef and cook until well done.
Drain if needed and return pot and beef back to the Ninja Foodi.
Add in the taco seasoning as instructed on the package.
Add in the pasta, 4 cups of water, tomato sauce, and chilies. Be sure the liquid fully covers the pasta.
Secure the pressure cooker lid onto the Ninja Foodi and set the nozzle to 'seal'.
Cook on manual high pressure for 6 minutes.
Quick-release when it is done cooking. This needs to be done immediately so that your pasta does not turn to mush.
Remove the lid carefully, stir up the pasta and let cool for about 5 minutes.
Serve topped with cheese.
Video
Notes
As a general rule, you look at the box of pasta you are using and cook it for 1/2 the cook time listed on the box. The pasta I used was to be cooked in 12 minutes, so I cooked for 6.