Select Saute on your Crockpot Express. Heat oil for 1 minute. Add onion and cook for two minutes.
Add the meatballs with 1 teaspoon salt and pepper. Cook and stir until browned evenly on all sides, about 2 minutes. Add garlic and thyme; cook until fragrant, about 30 seconds. Pour in soy sauce or worcheshire.
Stir in the soup and add the broth. Continue to cook until it starts boiling.
Add in the egg noodles and close and cook on manual for another 5 minutes. Make sure the noodles are covered in liquid. If not, add a little more water until they are.
Quick release. Open pressure cooker; stir in sour cream and serve!