Turn pressure cooker to saute and add olive oil, ground sausage or beef, and diced onions. Cook until meat is no longer pink, adding packet of chili seasoning half way through cooking process.
Turn pot off.Dump in tomato sauce, diced tomatoes, kidney beans, beef broth, chili powder if desired and stir.Pour 1 cup uncooked noodles on top and gently push down so they are just submerged but do NOT stir.
Set to pressure high for 5 minutes. Do a quick release and lift lid. Turn pot off. It is great with 3/4 c of shredded cheese is stirred in at this time, or if you have a Ninja foodi you can sprinkle it on top and close the top air crisp lid at 400 F for 2 minutes until browned. Serve