Prepare the Beef
Start by trimming the fat off your beef and cutting it into bite-sized pieces. If you're using a chuck roast, you can leave it in larger chunks and shred it once it's fully cooked. Season the beef generously with salt and pepper. This will help build the base flavor for the dish.
Sauté the Aromatics
While it’s optional, sautéing the onions and garlic in a little bit of oil for a few minutes before adding them to the slow cooker enhances their flavors. The heat brings out their natural sweetness, making your sauce even more flavorful. If you’re in a hurry, you can skip this step and throw everything straight into the slow cooker. However, taking a few extra minutes to sauté adds that little extra depth to the dish.
Load Up the Slow Cooker
Add your seasoned beef, sautéed onions, garlic, mushrooms, and beef broth into the slow cooker. Stir everything to combine, and then cover it. You can cook it on low for 6-8 hours or on high for 3-4 hours. The longer the beef cooks, the more tender it will become, so if you have the time, slow cooking on low is the way to go.
Finish the Sauce
Once the beef is tender, it’s time to finish off the sauce. Stir in the sour cream (or Greek yogurt if you’re going for a lighter version) and Worcestershire sauce. If you want to thicken the sauce, create a slurry by mixing a tablespoon of flour with some water, then add it to the slow cooker. Give everything a good stir and let it cook for another 30 minutes to thicken up.
Prepare Your Noodles or Rice
While the Stroganoff is finishing up in the slow cooker, cook your egg noodles or rice according to the package instructions. The noodles will soak up the creamy sauce perfectly, making every bite indulgent and comforting.
Serve and Enjoy!
Once the beef is tender and the sauce has thickened to perfection, it's time to serve. Spoon the beef and sauce over the noodles or rice, and garnish with fresh parsley for a pop of color and flavor. This dish pairs wonderfully with a side of steamed vegetables or a simple salad.