Keto Sauteed Mushrooms
Golden, buttery cremini mushrooms seared in garlic, fresh thyme, and a splash of balsamic for deep savory flavor. At just 3.2g net carbs and 130 calories per serving, this 20-minute keto side is the perfect steakhouse-style partner for any protein.
Head of Nutrition · June 17, 2026
Nutrition per serving
Per serving · makes 4. Values are estimates; brands vary.
These steakhouse-style keto sauteed mushrooms are buttery, garlicky, and deeply browned in just 20 minutes. They're the kind of effortless side dish that turns a plain piece of steak, chicken, or salmon into a restaurant-worthy plate.
Ingredients
- 1 lb (450g) cremini or button mushrooms, cleaned and halved
- 2 tablespoons unsalted butter
- 1 tablespoon extra-virgin olive oil
- 3 cloves garlic, minced
- 1 teaspoon fresh thyme leaves (or 1/2 teaspoon dried)
- 1 teaspoon balsamic vinegar
- 2 tablespoons fresh parsley, chopped
- 1/2 teaspoon sea salt
- 1/4 teaspoon freshly ground black pepper
Instructions
- 1
Wipe the mushrooms clean with a damp paper towel and cut any large ones in half so they cook evenly. Avoid soaking them, as they absorb water and steam instead of sear.
- 2
Heat the olive oil and 1 tablespoon of the butter in a large skillet over medium-high heat until the butter foams and just starts to brown.
- 3
Add the mushrooms in a single layer and let them sit undisturbed for 3 to 4 minutes to develop a deep golden crust, then stir and cook another 4 to 5 minutes until browned all over and any released liquid has evaporated.
- 4
Reduce heat to medium, push mushrooms to the side, and add the remaining 1 tablespoon butter, the garlic, and thyme. Stir for 30 to 60 seconds until fragrant, then toss everything together.
- 5
Drizzle in the balsamic vinegar and stir for 30 seconds to coat. Season with salt and pepper, remove from heat, and fold in the fresh parsley before serving warm.
Tips & notes
- For the best caramelization, don't crowd the pan — cook in two batches if your skillet is small, otherwise the mushrooms will steam and turn rubbery.
- Store leftovers in an airtight container in the fridge for up to 4 days. Reheat in a hot skillet rather than the microwave to keep them from going soggy.
- Swap the thyme for fresh rosemary, or finish with a tablespoon of grated Parmesan for an extra savory, umami-rich side.
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Frequently asked questions
- How many carbs are in keto sauteed mushrooms?
- Each serving has 3.2g net carbs (4.4g total carbs minus 1.2g fiber), along with 130 calories, 3.5g protein, and 11.5g fat. This recipe makes 4 servings, so it fits comfortably into a keto or low-carb day.
- Are mushrooms keto-friendly?
- Yes. Mushrooms are one of the most keto-friendly vegetables, with only about 2 to 3 grams of net carbs per cup. They're low in carbs, rich in B vitamins and selenium, and their meaty texture makes them a satisfying side for any keto meal.
- Should I wash mushrooms before sauteing?
- Avoid soaking mushrooms in water, since they're porous and absorb moisture that prevents them from browning. Instead, wipe them clean with a damp paper towel or give them a quick rinse and pat them completely dry before cooking.
