Place chicken on trivet in Instant Pot. Season with salt and pepper. Baste chicken with olive oil and melted butter. Add 1/2 cup of water to the bottom of the pot and cover. Set to 30 min (40 if frozen) on manual. Make sure the vent is sealed.
While chicken is cooking, finely chop vegetables in the food processor. Saute until softened.
Once chicken is finished, let cool and shred.
Combine all ingredients including, chicken, sauteed vegetables, noodles, spices, and saffron in Instant Pot and cover with chicken broth. Avoid stirring the pasta as to not have it stick together. Set to manual for 8 minutes making sure the vent is sealed.
Once time is up do a quick release, stir, serve, and enjoy.