Pan-Seared Ribeye with Garlic Butter and Sauteed Mushrooms

By AislePrompt Editorial · ·

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are drafted and published.

A rich, high-fat keto dinner featuring a juicy ribeye steak pan-seared and topped with a luscious garlic herb butter, complemented by earthy sautéed mushrooms. This American keto recipe (low carb), ready in about 25 minutes, pairs ribeye steak, unsalted butter, and garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 850 calories and feeds 1, so it slots cleanly into a low-carb week and pairs well with cauliflower rice or roasted green vegetables. Tap "Build a week of meals around this recipe" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 15 min Serves 1 American cuisine 850 cal/serving
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Ingredients

The cast-iron skillet we’d sear this in → Best Cast Iron Skillets for 2026: Top Picks + Buying Guide

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Instructions

  1. Step 1: Pat dry 12 oz ribeye steak and season evenly with 1 tsp salt and 1 tsp black pepper on both sides.
  2. Step 2: Heat 2 tbsp olive oil in a cast-iron skillet over medium-high heat until shimmering, about 2 minutes.
  3. Step 3: Add the ribeye steak and sear for 4 minutes without moving, then flip and cook for another 3 minutes for medium-rare.
  4. Step 4: While steak cooks, finely mince 3 garlic cloves and chop 1 tsp fresh thyme leaves.
  5. Step 5: Reduce heat to medium-low, add 2 tbsp unsalted butter, garlic, and thyme to the pan, and spoon the melted butter over the steak repeatedly for 1 minute to infuse flavor.
  6. Step 6: Remove steak from the pan and let rest on a plate tented with foil for 5 minutes.
  7. Step 7: In the same pan, add remaining 2 tbsp unsalted butter and 8 oz sliced cremini mushrooms, sauté over medium heat for 5 minutes until golden and tender, seasoning with a pinch of salt.
  8. Step 8: Serve steak topped with garlic herb butter alongside the sautéed mushrooms.

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