Creamy Mushroom Steak with Garlic Potatoes
There’s something wonderfully cozy about steak and potatoes, especially when they’re tucked into a creamy mushroom sauce. It’s the kind of meal that feels rich and comforting, with tender steak, golden baby potatoes, and mushrooms simmered until they’re soft, savory, and full of flavor.
This creamy mushroom steak with garlic potatoes is perfect for a slow weekend dinner, a special family meal, or an evening when you want something that feels a little restaurant-style without leaving home. The skillet does most of the work, building flavor layer by layer — first the steak, then the potatoes, then the mushrooms, onions, garlic, and herbs.
By the end, everything is coated in a silky cream sauce with just a touch of Dijon and Worcestershire for depth. It’s hearty, warm, and deeply satisfying, the kind of dinner that makes everyone linger at the table a little longer.

Ingredients
- 4 steak fillets or sirloin steaks
- 1 1/2 pounds baby potatoes, halved
- 2 cups mushrooms, sliced
- 3 tablespoons olive oil, divided
- 4 tablespoons unsalted butter
- 5 cloves garlic, minced
- 1 small onion, sliced
- 1 cup beef broth
- 1 cup heavy cream
- 1 tablespoon Dijon mustard
- 1 teaspoon Worcestershire sauce
- 1 teaspoon fresh rosemary, chopped
- 1 teaspoon fresh thyme
- 1 teaspoon paprika
- Salt and black pepper, to taste
- 2 tablespoons fresh parsley, chopped
- Fresh rosemary sprigs, for garnish
Instructions
Start with the baby potatoes. Place them in a pot of salted water and boil for 10 to 12 minutes, or until they’re fork-tender.
Drain the potatoes and set them aside. Let them steam dry for a few minutes so they brown nicely in the skillet.
Pat the steaks dry with paper towels. This helps them get a beautiful sear.
Season both sides with salt, black pepper, paprika, and chopped rosemary.
Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Once the pan is hot, add the steaks.
Sear the steaks for 3 to 5 minutes per side, depending on their thickness and how you like them cooked. You want a nice browned crust on the outside.
Transfer the steaks to a plate and let them rest while you make the rest of the dish.
In the same skillet, add 1 tablespoon of olive oil and 1 tablespoon of butter.
Place the boiled potatoes cut-side down in the pan. Let them cook for 5 to 6 minutes, until the bottoms turn golden and crisp.
Remove the potatoes and set them aside.
Add the remaining olive oil and 1 tablespoon of butter to the skillet. Add the sliced mushrooms and onion.
Cook for 5 to 7 minutes, stirring occasionally, until the mushrooms are browned and the onion is soft.
Stir in the minced garlic, fresh thyme, and a little extra black pepper. Cook for about 30 seconds, just until the garlic smells warm and fragrant.
Pour in the beef broth and scrape up the browned bits from the bottom of the pan. Those little bits add so much flavor to the sauce.
Stir in the heavy cream, Dijon mustard, and Worcestershire sauce.
Let the sauce simmer for 4 to 5 minutes, stirring often, until it thickens slightly and becomes smooth and creamy.
Return the steaks and potatoes to the skillet.
Spoon the creamy mushroom sauce over the steaks and let everything warm together for 2 to 3 minutes.
Garnish with fresh parsley and rosemary sprigs before serving.
Presentation
Serve this dish right from the skillet for a cozy, rustic feel, or arrange it on a large platter with the steaks in the center and the golden potatoes nestled around the edges.
Spoon plenty of creamy mushroom sauce over each steak so it drapes over the sides. Add a sprinkle of fresh parsley for color and a few rosemary sprigs for a simple, elegant touch.
This meal is already hearty on its own, but it pairs beautifully with roasted green beans, asparagus, a crisp salad, or warm bread for soaking up the extra sauce.
Nutritional Information:
- ⏰ Prep Time: 15 minutes | Cooking Time: 30 minutes | Total Time: 45 minutes
- 🔥 Kcal: 610 kcal per serving | 🍽️ Servings: 4 servings
Conclusion
Creamy mushroom steak with garlic potatoes is rich, comforting, and full of classic flavor. The steak is tender, the potatoes are golden, and the mushroom sauce brings everything together in the most delicious way.
It’s a cozy skillet dinner that feels special without being complicated. Make it soon when you want something warm, satisfying, and perfect for sharing around the table.
