Keto Steak with Mushrooms and Onions

Indulge in the ultimate low-carb comfort meal with this Keto Steak with Mushrooms and Onions recipe. Perfectly seared ribeye steaks are paired with a rich, buttery sauté of cremini mushrooms and caramelized onions, infused with the aromatic touch of fresh thyme and garlic. This quick yet elegant dish, ready in under 35 minutes, balances bold flavors and a tender, juicy texture—a true keto-friendly feast for steak lovers. Optional beef broth deglazing adds a savory depth, while simple ingredients like olive oil and butter keep it wholesome and satisfying. Serve it as a delectable dinner centerpiece, garnished with a sprig of thyme for a restaurant-quality presentation that’s perfect for keto and low-carb lifestyles.

Nutriscore Rating: 61/100

Prep Time:10 mins

Cook Time:25 mins

Total Time:35 mins

Servings: 2

Ingredients

• 2 pieces ribeye steaks
• 2 tablespoons olive oil
• 2 tablespoons unsalted butter
• 2 cloves garlic cloves, minced
• 8 ounces cremini mushrooms, sliced
• 1 large yellow onion, thinly sliced
• 4 sprigs fresh thyme
• 1 teaspoon salt
• 1 teaspoon black pepper
• 0.25 cup beef broth (optional for deglazing)

Directions

Step 1

Take the ribeye steaks out of the refrigerator and let them come to room temperature for about 20 minutes. Pat them dry with a paper towel.

Step 2

Season both sides of the steaks with 1/2 teaspoon salt and 1/2 teaspoon black pepper. Set aside.

Step 3

Heat 1 tablespoon of olive oil and 1 tablespoon of butter in a large skillet over medium-high heat.

Step 4

Once the skillet is hot, add the steaks and sear them for 3-4 minutes per side or until they reach your desired doneness (130°F for medium-rare). Use a meat thermometer for accuracy.

Step 5

Remove the steaks from the skillet and cover them loosely with aluminum foil to rest.

Step 6

Lower the heat to medium and add the remaining olive oil and butter to the same skillet.

Step 7

Add the sliced onion and sauté for 3-4 minutes until translucent. Stir occasionally to avoid burning.

Step 8

Add the garlic, fresh thyme sprigs, and sliced mushrooms. Continue cooking for another 8-10 minutes until the mushrooms are tender and golden, and the onions are caramelized.

Step 9

If desired, deglaze the skillet by pouring in the beef broth and scraping the bottom of the pan to release any browned bits.

Step 10

Season the mushroom and onion mixture with the remaining salt and pepper. Remove the thyme sprigs and discard.

Step 11

Serve the steaks on plates and top with the sautéed mushrooms and onions. Optionally, garnish with a sprig of thyme.

Step 12

Enjoy your keto-friendly steak meal!

Nutrition Facts

Serving size	(911.1g)

Amount per serving	% Daily Value*
Calories	1751.1

Total Fat 147.0g	0%
Saturated Fat 57.3g	0%
Polyunsaturated Fat 2.7g
Cholesterol 382mg	0%
Sodium 2822.5mg	0%
Total Carbohydrate 26.2g	0%
Dietary Fiber 6.0g	0%
Total Sugars 11.1g
Protein 96.1g	0%

Vitamin D 50.7IU	0%
Calcium 130.6mg	0%
Iron 13.0mg	0%
Potassium 2311.7mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 73.0%

Protein: 21.2%

Carbs: 5.8%