Sour Cream Asparagus Flank Steak Crockpot Dinner Step-by-step instructions

Before you start

Before you start, slice the flank steak against the grain into thin strips, about 1/4-inch thick. Trim the woody ends from the asparagus and smash the garlic cloves.

Measure out the sour cream and gravy mix. Have your slow cooker ready and a large pot of water for the noodles. The prep takes about 10 minutes, and then the slow cooker does the rest.

Instructions

Layer and Sauce

1. 1Layer the Ingredients
   Place the sliced flank steak strips evenly in the bottom of a 6-quart slow cooker. Arrange the asparagus spears on top of the beef, then scatter the smashed garlic cloves over everything.
   Look for The beef covers the bottom, with asparagus and garlic layered on top.
   Tip Cut the flank steak against the grain into thin strips for maximum tenderness.
2. 2Add the Sauce
   In a small bowl, stir together the sour cream and dry brown gravy mix until smooth. Spoon the mixture over the beef and asparagus, spreading it gently to cover as much as possible.
   Look for The sour cream mixture forms a thick, creamy layer over the meat and vegetables.
   Tip Don't stir after adding the sauce—it will melt and create a rich gravy as it cooks.

The raw beef, asparagus, and garlic are layered in the slow cooker, with the sour cream and gravy mixture spread on top. The ingredients look fresh and colorful. The sour cream mixture is thick and creamy. Before moving on, ensure the beef is in an even layer and the sauce covers most of the surface.

Slow Cook

3. 3Cook Low and Slow
   Cover the slow cooker and cook on LOW for 6 to 7 hours, or on HIGH for 3 to 4 hours, until the beef is fork-tender and the asparagus is tender but not mushy. Let it rest for 3 minutes before slicing.
   Look for The sauce will be bubbling gently around the edges, and the beef will shred easily with a fork.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Check at the lower end of the time range—asparagus can become too soft if overcooked.
4. 4Rest the Meat
   Turn off the slow cooker and let the beef rest in the hot gravy for at least 5 minutes. This allows the juices to redistribute and ensures the internal temperature stays at least 145°F (63°C).
   Look for The meat rests in the warm gravy, absorbing flavor and moisture.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Resting is key—it makes the beef even more tender and juicy.

After several hours, the slow cooker is bubbling gently around the edges. The sauce has turned a rich mahogany color, and the beef is tender. The aroma is savory and garlicky.

Check that the beef is fork-tender and the asparagus is cooked through but not falling apart. The internal temperature should read at least 145°F (63°C).

Rest and Serve

5. 5Cook the Noodles
   While the beef rests, cook the egg noodles according to package directions in salted boiling water. Drain well.
   Look for The noodles are tender and ready to be topped with the beef and gravy.
   Tip Toss the drained noodles with a little butter if desired, to keep them from sticking.
6. 6Serve and Enjoy
   Spoon the warm noodles onto serving plates. Ladle the beef, asparagus, and creamy gravy over the top. Serve immediately.
   Look for Each plate gets a generous scoop of meat, asparagus, and velvety sauce.
   Tip For a prettier presentation, arrange the asparagus spears neatly on top of the beef.

The beef rests in the hot gravy, absorbing even more flavor. The noodles are cooked and drained. When you lift a spoonful, the beef shreds easily and the asparagus is tender. The sauce coats the back of a spoon. Everything looks glossy and inviting, ready to be served.

Common mistakes

One common mistake is overcooking the asparagus, which turns it mushy. Keep an eye on the time, especially on HIGH. Another is using a lean cut that dries out—flank steak is ideal.

Also, don't stir the ingredients after adding the sour cream mixture; stirring can break up the meat and make the sauce grainy. Finally, always slice the steak against the grain, or it will be chewy.

How to tell it’s done

The dish is done when the beef is fork-tender and easily pulls apart. The internal temperature of the beef should reach at least 145°F (63°C). The asparagus should be tender but still hold its shape.

The sauce will be bubbling and thickened. If the sauce seems too thin, remove the beef and vegetables, then simmer the sauce on the stovetop to reduce.

• Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest