KETO GARLIC BUTTER STEAK BITES WITH MUSHROOMS

Keto Garlic Butter Steak Bites with Mushrooms Recipe

A quick, one-pan keto dinner ready in just 25 minutes.

Key Info
  • Prep Time: 10 minutes
  • Cook Time: 10-15 minutes
  • Total Time: 25 minutes
  • Servings: 4
  • Calories: 385 per serving
  • Fat: 28g
  • Protein: 32g
  • Carbs: 4g net
  • Difficulty: Easy
  • Dietary: Keto, Low-Carb, Gluten-Free
Equipment Needed
  • Large skillet or cast iron pan (12-inch recommended)
  • Tongs
  • Sharp knife and cutting board
  • Meat thermometer (optional)

Marbled sirloin steak cubes on a wooden cutting board, under warm kitchen lighting, with a professional chef's knife nearby.

Ingredients
For the Steak:
  • 1.5 lbs sirloin steak, cut into 1-inch cubes (680g)
  • 2 tablespoons butter (30g)
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 teaspoon Italian seasoning
For the Garlic Mushrooms:
  • 8 oz mushrooms, quartered (226g)
  • 4 tablespoons butter (60g)
  • 6 cloves garlic, minced
  • 1/2 teaspoon paprika (optional)
  • Fresh parsley for garnish

Close-up image of herb-dusted meat cubes seasoned with Italian spices, highlighted by dramatic lighting.

Method
  1. Pat steak cubes completely dry with paper towels.
  2. Season steak with salt, pepper, and Italian seasoning.
  3. Heat 2 tablespoons butter in skillet over medium-high heat until bubbling.
  4. Add steak in batches (don’t overcrowd!) and sear for 2-3 minutes total, turning once.

    (Look for a golden-brown crust.)

  5. Remove steak to a plate, keep warm.
  6. In the same pan, add remaining butter and mushrooms.
  7. Cook mushrooms for 3-5 minutes until golden.

    (They should release their moisture and start to brown.)

  8. Add minced garlic, cook for 30 seconds until fragrant.
  9. Return steak to pan, toss everything in the garlic butter.
  10. Cook 1-2 minutes more until steak reaches desired doneness.

    (130-135°F for medium-rare.)

Searing steak in a cast iron skillet with sizzling butter, creating a golden brown crust, steam rising under moody lighting.

Crucial Tips
  • Room temperature steak sears better.
  • Don’t move steak pieces during the first minute of searing.
  • Leave space between meat pieces when searing.
  • Use high heat – we want to sear, not steam.

Overhead view of golden quartered mushrooms sautéed in garlic butter sauce, steaming in a black pan

Storage & Variations
Storage:
  • Refrigerate up to 3 days in an airtight container.
  • Reheating: Brief pan-sear or microwave until just warm.
Common Mistakes:
  • Overcrowding the pan.
  • Oversalting (mushrooms shrink and concentrate flavors).
  • Moving meat too much during searing.
Variations:
  • Add 1/2 cup heavy cream for a sauce.
  • Try different mushroom varieties.
  • Add fresh herbs like thyme or rosemary.
  • Swap sirloin for ribeye or tenderloin.
Serve With:

Juicy steak bites garnished with parsley, glossy mushrooms in rich butter sauce served in restaurant style

This recipe works perfectly for meal prep and doubles easily – just cook in more batches rather than overcrowding your pan. The key to success is getting a good sear on the meat while keeping the inside tender and juicy.

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