Garlic Butter Sirloin Steak Bites with Rosemary

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Juicy sirloin steak bites pan-cooked in a rich garlic butter sauce infused with fresh rosemary. This american-inspired beef (keto, low carb) ready in about 18 minutes pairs sirloin steak, unsalted butter, garlic cloves, minced for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" 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: 8 min Serves 4 American cuisine 420 cal/serving
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Ingredients

Instructions

  1. Step 1: Trim excess fat from 1 lb sirloin steak and cut into 1-inch cubes. Season evenly with 1 tsp salt and 1/2 tsp black pepper.
  2. Step 2: Heat 1 tbsp olive oil in a large skillet over medium-high heat until shimmering, about 2 minutes.
  3. Step 3: Add the steak cubes in a single layer and cook without stirring for 2 minutes until the bottom is browned.
  4. Step 4: Stir and cook for an additional 2 minutes until all sides are browned and steak is cooked to medium rare.
  5. Step 5: Lower heat to medium, add 3 tbsp unsalted butter, 3 minced garlic cloves, and 1 tbsp chopped fresh rosemary to the skillet.
  6. Step 6: Stir continuously for 1-2 minutes until the butter melts and becomes fragrant, coating the steak bites.
  7. Step 7: Remove from heat and serve immediately, spooning the garlic rosemary butter over the steak bites.

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Frequently asked questions

How long does Garlic Butter Sirloin Steak Bites with Rosemary take to make?

Total time is about 18 minutes (10 min prep + 8 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Garlic Butter Sirloin Steak Bites with Rosemary?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep sirloin steak from drying out.

Can I substitute ingredients in Garlic Butter Sirloin Steak Bites with Rosemary?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Garlic Butter Sirloin Steak Bites with Rosemary for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Garlic Butter Sirloin Steak Bites with Rosemary keto?

Yes — this recipe is tagged keto, low carb based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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