Press the SAUTE button on your pressure cooker. Drizzle with the olive oil. Add in the onion and mushrooms and saute them together.
Stir them occasionally and cook for 5-7 minutes.
While the mushrooms cook, take a medium bowl, and combine the cubed stew meat with the seasonings. Once the mushrooms have shrunk, spread the seasoned meat in a single layer.
Drizzle everything with Worcestershire and soy sauce. Pour over the broth and stir to combine. Just go on and set the lid on, and press the MANUAL button to cook for 18 minutes. Make sure the valve is in the sealed position. Meanwhile, cook the egg noodles in salted water according to package directions, then drain and set aside.
Once the 18 minute mark time is done, manually/quickly release the pressure. While the pressure gets out, take a small jug and whisk well the gf flour with 3-4 tbsp of water, until smooth. Remove the lid from the pot, pour in the slurry and give the stew a good stir.
Press the SAUTE button, and set for 3 minutes. Bubble the stew to thicken the sauce. Add in the cooked noodles and freshly chopped parsley, if desired.
Notes
Cut beef into even bite-sized cubes for tender results.
Always sauté onions and mushrooms first to build flavor.
Cook noodles separately to keep them from turning mushy.
Whisk the slurry smooth before adding to avoid lumps.
Storage & Make-Ahead Tips
Fridge: Keep leftovers in an airtight container in the fridge for up to 4 days.
Freezer: Freeze in portions for up to 3 months. Thaw overnight in the fridge before reheating.
Reheating: Warm gently in the microwave or on the stovetop until heated through, adding a splash of broth if needed to loosen the sauce.