Beef stroganoff, named for the stroganov family, is a russian dish of beef and sauce that harkens back to tsarist russia. The recipebasically a dish of sauted beef in sour cream saucewas initially created in the mid-1800s. While beef stroganoff enjoys worldwide popularity now, there are many regional variations. In the u. S. , stroganoff is typically prepared with beef, mushrooms, onions, and a sour cream sauce. It is usually served with noodles. This instant pot beef stroganoff is a classic u. S. Version of the dish made with the addition of garlic. Worcestershire sauce adds tanginess, while a bit of dijon mustard adds mellow flavor. After the beef is pressure-cooked, the noodles are added to the pot, making this version a convenient one-pot meal. The sour cream, added near the end of the cooking time, finishes the dish perfectly.