A Recipe For Seared Strip Steak with Sautéed Mushrooms

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With Valentines Day fast approaching take a look at this impressive Seared Strip Steak recipe served with sautéed mushrooms. It is ideal for a romantic dinner with someone special. The key ingredients include steak, mushrooms, and rosemary and it will be ready to serve in just 40 minutes.

A seared strip steak on a cream-colored plate, topped with sauteed mushrooms. A bowl of mushrooms are on the side, as well as a bunch of rosemary. Text overlay says"Seared Strip Steak". Similar photos of the recipe from various angles are used throughout but with different text overlays unless otherwise described.

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Seared Strip Steak

The full ingredients list and instructions are found in the printable recipe card at the end of this post. I highly recommend reading the blog post all the way through so that you don’t miss any tips or substitution suggestions, to ensure that you have all the ingredients and equipment required and understand the steps and timings involved.

Ready for an easy and delicious dinner idea? This seared strip steak with sautéed mushrooms is one to try.

The steak is cooked to perfection in a hot skillet and the mushrooms cooked with rosemary add a flavorful boost.

You can keep the dish low carb by serving as is, or add a baked potato, a side salad or some steamed veggies for a complete dinner. Enjoy!

Seared Strip Steak with Mushrooms

Ingredients & Equipment Used In This Recipe

While most ingredients can be bought in grocery stores, for your convenience, any specialized or notable ingredients and equipment needed for this recipe have been linked to Amazon or other stores if available online.

It may not include staple ingredients such as oil, salt, sugar, etc., as you’re likely to have those in your kitchen. The complete list of ingredients with measurements is found in the recipe card.

  • Fresh ProduceMushrooms
  • ProteinStrip Steak, also known as Sirloin Steak
  • DairyUnsalted Butter
  • Dried Rosemarycan use fresh if you prefer
  • Garlic Powder

Recipes on The Purple Pumpkin Blog use both cup measurements and/or weighted measurements. American cups and kitchen food scales are handy pieces of equipment to have in your kitchen as it means you’ll be able to make all of the different recipes on my blog. I try to give American, imperial, and metric measurements in my recipes. Please note, you can mix cup measurements with weighted measurements, but never mix imperial (pounds, ounces, pints, etc.,) with metric (kilograms, grams, litres, etc.,).

Low Carb Dinner Option - Steak and Mushrooms

More Recipes Using Steak

The hero ingredient in this dish is steak, so here are some more recipes using the same:

More Low Carb Recipes

Looking for more low carb dishes to make? Check these recipes out next:

Keto Strip Steak

Recipe Tips

  • Regular olive oil has a higher smoke point than extra virgin olive oil. Therefore, it is a better option for the high temperatures utilized here.
  • For best results, allow steaks to rest at room temperature for 30 minutes prior to cooking.

How Do I Make Seared Strip Steak?

Check out the printable recipe card below with full ingredients and instructions. Any demonstration photos do not print out to save your ink.

Seared Strip Steak Recipe

Seared Strip Steak with Sautéed Mushrooms

Yield: 2
Prep Time: 15 minutes
Cook Time: 20 minutes
Additional Time: 5 minutes
Total Time: 5 minutes

This seared Strip Steak recipe served with sautéed mushrooms is ideal for a romantic dinner with someone special.


  • 2 (8-oz/225g) strip steaks (sirloin)
  • Sea salt and black pepper, to taste
  • 1 Tbsp olive oil
  • 4 Tbsp unsalted butter, divided
  • 8 oz (225g) white mushrooms, sliced
  • 1 tsp dried rosemary (or 1 Tbsp fresh rosemary leaves, very finely chopped)
  • ½ tsp garlic powder


  1. Preheat oven to 200°C/400°F/Gas 6. Generously season the steaks on both sides with salt and black pepper, to taste. Set aside.
  2. Add olive oil to a large cast-iron skillet set over medium-high heat. Heat skillet for 5 minutes until very hot, before adding the meat. Sear the steaks until nicely browned, approximately 2-3 minutes per side.
  3. Remove skillet from heat and top each steak with 1 tablespoon unsalted butter.
    Transfer the skillet to the center of the preheated oven and roast for 8-10 minutes or until an instant-read meat thermometer reads 130°F/55°C for medium-rare.*

    Seared Steaks
  4. Once the steaks are in the oven, add the remaining butter to another skillet set over medium heat. Add mushrooms, rosemary, and garlic powder. Season with salt and black pepper, to taste, and stir to combine. Cook for 5-6 minutes, stirring frequently until the mushrooms are nicely browned and start to release their juices. Remove from heat and set aside.
  5. Remove skillet from oven and transfer steaks to a large plate. Cover loosely with aluminum foil and rest for 5 minutes. (Internal temperature will continue to rise several degrees while they rest). Remove foil and serve immediately topped with some of the sautéed mushrooms. Enjoy!

    Seared Strip Steak Recipe


  • Actual cook time will vary depending on a number of factors, including internal starting temperature, the thickness of the steaks, individual oven variances, and preferred level of ‘doneness.’ Check after 6-7 minutes and adjust cook time accordingly.
  • Beef Temperature Chart

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Nutrition Information:
Yield: 2 Serving Size: 1
Amount Per Serving: Calories: 589Total Fat: 51gSaturated Fat: 23gTrans Fat: 0gUnsaturated Fat: 23gCholesterol: 168mgSodium: 210mgCarbohydrates: 4gFiber: 1gSugar: 1gProtein: 30g

This site uses Nutritionix to provide estimated nutrition. Nutritional information is always approximate and will depend on the quality of ingredients used and serving sizes. If you need exact calories and macros, please do your own calculations.

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Make It A Special Dinner!

You’ve made the main dish, but what about the rest of the courses?

Here are additional recipes to create a menu for a special meal or dinner party (may not be low carb):

There are 500+ Recipes on The Purple Pumpkin Blog for you to enjoy – please feel free to check them out too.

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