Seared Irish Beef with Mustard and Herb Pan Sauce

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Juicy pan-seared beef steaks served with a tangy mustard and fresh herb pan sauce that complements the rich meat. This irish-inspired beef ready in about 22 minutes pairs salt, black pepper, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 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.

★ 4.5 (13 ratings) Prep: 10 min Cook: 12 min Serves 4 Irish cuisine 350 cal/serving
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Ingredients

Instructions

  1. Step 1: Pat 4 beef sirloin steaks dry and season both sides with 1 tsp salt and 1 tsp black pepper.
  2. Step 2: Heat 2 tbsp olive oil in a large skillet over medium-high heat until shimmering. Add steaks and sear for 4 minutes per side for medium-rare, adjusting time for desired doneness.
  3. Step 3: Remove steaks from skillet and tent with foil to rest.
  4. Step 4: Reduce heat to medium and add 3 tbsp unsalted butter and 2 crushed garlic cloves to the skillet. Sauté for 1 minute until fragrant.
  5. Step 5: Stir in 2 tbsp Dijon mustard, 1/2 cup beef broth, 2 tbsp chopped fresh parsley, 1 tbsp fresh thyme leaves, and 1 tsp lemon juice.
  6. Step 6: Simmer sauce for 3-4 minutes until slightly thickened and glossy.
  7. Step 7: Return steaks to skillet briefly to coat with sauce, then serve immediately with pan sauce spooned over.

Frequently asked questions

How long does Seared Irish Beef with Mustard and Herb Pan Sauce take to make?

Total time is about 22 minutes (10 min prep + 12 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 Seared Irish Beef with Mustard and Herb Pan Sauce?

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 salt from drying out.

Can I substitute ingredients in Seared Irish Beef with Mustard and Herb Pan Sauce?

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 Seared Irish Beef with Mustard and Herb Pan Sauce 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.

What goes well with Seared Irish Beef with Mustard and Herb Pan Sauce?

Irish beef like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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