Creamy Gruyère Flank Steak Crockpot Dinner Tips, FAQ & printable recipe

Tips for success

For the most tender beef, slice the flank steak as thin as possible, about 1/4-inch thick, and always against the grain.

This shortens the muscle fibers, so they don't become chewy during the long cook. If the meat is slightly frozen, it's easier to slice thinly. You can also ask the butcher to slice it for you.

To enhance the flavor, consider searing the beef strips in a hot skillet before adding them to the slow cooker. While the video doesn't show this step, it adds a deeper, caramelized note.

However, the recipe works perfectly without searing, keeping it truly dump-and-go. If you do sear, do it in batches and deglaze the pan with a splash of broth to capture the browned bits.

Variations

• Mushroom and Thyme: Add 8 oz sliced cremini mushrooms along with the onions and carrots. Sprinkle in 1 teaspoon dried thyme. The mushrooms add an earthy depth that complements the Gruyère.
• Spicy Kick: Add 1/2 teaspoon red pepper flakes or a minced jalapeño with the vegetables. A dash of hot sauce stirred into the sauce at the end brings a subtle heat.
• Balsamic Glaze: Drizzle 2 tablespoons balsamic vinegar over the beef before adding the cheeses. The vinegar adds a sweet-tangy note that brightens the rich sauce.
• Herb-Infused: Add 2 sprigs fresh rosemary and 3 sprigs fresh thyme to the slow cooker with the vegetables. Remove before serving. The herbs infuse the sauce with a fragrant, savory aroma.

Storage and make-ahead

Fridge

Store leftovers in an airtight container in the fridge for up to 4 days. Reheat gently with a splash of broth to restore the sauce's silky texture.

Freezer

Freeze in a freezer-safe container for up to 3 months. Thaw overnight in the refrigerator before reheating.

Reheat

Reheat in a saucepan over medium-low heat, stirring often, until heated through. Add a little beef broth if the sauce has thickened too much.

Store any leftovers in an airtight container in the refrigerator for up to 4 days. The sauce will thicken as it cools; when reheating, add a splash of beef broth or water to loosen it.

Reheat gently on the stovetop or in the microwave, stirring occasionally, until hot throughout. Do not leave the dish at room temperature for more than 2 hours.

This recipe can be assembled the night before. Layer all the ingredients in the slow cooker insert, cover, and refrigerate overnight. In the morning, place the insert in the slow cooker and cook as directed.

The cooking time may need to be extended by 30 minutes to an hour because the ingredients start cold. Alternatively, cook the full dish, let it cool, and refrigerate for up to 3 days; reheat gently before serving.

Serving ideas

Serve the Gruyère cream flank steak over toasted garlic brioche slices, as shown in the video, or over mashed potatoes, egg noodles, or polenta. The creamy sauce soaks into the bread or starch, making every bite rich and satisfying. A simple green salad with a tangy vinaigrette balances the richness.

For a complete meal, add a side of roasted asparagus or steamed green beans. The dish is hearty on its own, so keep sides simple. Garnish with fresh thyme or parsley if desired, though the video shows no garnish. This is comfort food at its best—warm, creamy, and full of savory flavor.

Frequently asked questions

Recipe card

Creamy Gruyère Flank Steak Crockpot Dinner

Prep 15 minCook 6 hTotal 6 h 15 minServes 6

Ingredients

• 2 lb flank steak, thinly sliced against the grain
• 1 cup peeled pearl onions
• 2 cups crinkle-cut carrots
• 8 oz softened cream cheese
• 1 cup shredded aged Gruyère cheese

Instructions

1. Place the thinly sliced flank steak strips in the bottom of a 6-quart slow cooker. Spread them out so they cover the bottom evenly.
2. Scatter the pearl onions and crinkle-cut carrots over the beef. No need to stir; just let them rest on top.
3. Drop the softened cream cheese in dollops over the vegetables, then sprinkle the shredded Gruyère over everything.
4. Cover the slow cooker and cook on LOW for 6 to 8 hours, or on HIGH for 3 to 4 hours, until the beef is fork-tender and the sauce is bubbling. Let it rest for 3 minutes before slicing.
5. After cooking, stir the sauce gently to combine the melted cheeses into a smooth, creamy gravy. The beef should be tender enough to pull apart with a spoon.
6. Ladle the hot beef, vegetables, and creamy sauce over toasted brioche slices or mashed potatoes. Serve immediately.

Contains: milk

Estimated nutrition per serving

Calories

450

Protein

35 g

Carbohydrates

12 g

Fat

28 g

Automatic estimate from the ingredient list, not laboratory-verified.