Pan Seared Steak with Mushrooms

Yield: 2 people
Prep Time:
10 mins
Cook Time:
8 mins
Total Time:
18 mins
Pan Seared Steak with Mushrooms is an easy skillet recipe made with grass-fed butter and thyme and it’s a recipe that is also gluten free, low carb, paleo, keto and Whoel30 friendly. Delicious steak in just 15 minutes!
Print Recipe
5 from 1 vote


For the mushrooms

  • 1 tablespoon olive oil — extra virgin
  • 1 tablespoon butter
  • 6 ounce mushrooms — sliced
  • 3 garlic cloves — minced
  • Salt and pepper to taste

For the Steak

  • 2 lean New York Steak strip steaks
  • Coarse salt to taste
  • tablespoons  grass-fed butter
  • cloves garlic — smashed (don’t mince the cloves because it will burn fast)
  • sprigs fresh thyme


  1. Remove the steaks from the fridge about 30 minutes to 1 hour before cooking.
  2. Place them on a paper towel-lined cutting board and pat them dry with paper towels.
  3. Season well all sides of the steaks with coarse salt and set aside.
  4. In a 12-inch cast iron skillet over medium heat, add olive oil and butter, mushrooms, garlic and salt. Cook for about 3 minutes or until tender. Set aside on a plate.
  5. Increase the heat to high and let it heat up for about 3 minutes. When the pan smokes just a bit, it’s a sign that it’s properly heated.
  6. Place the steaks in the hot skillet and cook for about 2 minutes each side or until the steaks get a nice crust.
  7. Now add butter, garlic and thyme to the skillet. Flip the steaks again and tilt the pan to help the butter spread on the skillet.
  8. Using a spoon, pour butter over the steaks. Flip again the steaks and check the internal temperature of the steaks. For rare is Medium rare is 135 degrees, medium = 145 degrees, medium well = 150 degrees and well done = 160 degrees. The totally cooking time for my steak was about 8 minutes. It will depend on how you prefer your steak to be (rare, medium, medium well or well done).
  9. When the steaks get to thedesired cooking temperature, bring back the mushrooms and serve immediately with some roasted green beans, asparagus mushed cauliflower and/or rice cauliflower.

Recipe Notes

For more ONE-PAN meals? Here is a list with lots of low-carb, gluten-free and Whole30 one-pan recipe for you to make during your busy week.
Course: Main Course
Cuisine: American
Keyword: dinner, gluten-free, low-carb, meat, paleo, steak, whole30

If you make this recipe, please don't forget to snap a photo and hashtag it #primaverakitchen. I really want to see!

This post contains affiliate links. For more information, please visit my disclosure page here.