The first thing you want to do is cook the farfalle al dente. That will usually take around 5 or 6 minutes in boiling salted water. While that is happening, cover the skillet with a light coating of nonstick spray, and stew the beef in a few batches, giving each around 2-3 minutes to brown.
Transfer the meat to a separate bowl, and add the finely chopped onion to the same skillet. Fry it for around 4 minutes, and then add the garlic and mushrooms, and continue to fry it for a few more minutes, until the whole mixture has a golden brown color.
It is time to add the paprika and flour, cooking for around a minute or so. Bring back the beef, along with the Worcestershire sauce, stock, and paste, and cook until it becomes thick. Once the sauce is ready and you turn the heat off, stir in the sour cream, and season with black pepper and salt, stirring gently until it all combines.
Serve the meat on top of the farfalle, and enjoy your meal! This recipe provides up to 4 hearty servings.
Recipe by You Brew My Tea at https://www.youbrewmytea.com/weight-watchers-beef-stroganoff/