Seared Irish Beef with Mustard and Herb Pan Sauce

By AislePrompt Editorial · Published 2026-04-29 · Updated 2026-04-29

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 developed and reviewed.

Juicy pan-seared beef steaks served with a tangy mustard and fresh herb pan sauce that complements the rich meat. This Irish-inspired beef recipe, ready in about 22 minutes, pairs beef sirloin steaks, salt, black pepper 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. 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: 12 min Serves 4 Irish cuisine 350 cal/serving

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Ingredients

4 steaks, about 6 oz each beef sirloin steaks
1 tsp salt
1 tsp black pepper
2 tbsp olive oil
3 tbsp unsalted butter
2, crushed garlic cloves
2 tbsp Dijon mustard
2 tbsp chopped fresh parsley
1 tbsp fresh thyme leaves
1/2 cup beef broth
1 tsp lemon juice

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Instructions

Step 1: Pat 4 beef sirloin steaks dry and season both sides with 1 tsp salt and 1 tsp black pepper.
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.
Step 3: Remove steaks from skillet and tent with foil to rest.
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.
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.
Step 6: Simmer sauce for 3-4 minutes until slightly thickened and glossy.
Step 7: Return steaks to skillet briefly to coat with sauce, then serve immediately with pan sauce spooned over.