Pan-Seared Dijon Beef with Mushrooms and Garlic

By AislePrompt Editorial · Published 2026-04-16 · Updated 2026-04-16

Elegant tenderloin steaks topped with a rich Dijon mushroom sauce, enhanced by fresh garlic and thyme for a restaurant-quality keto dinner. This French-inspired beef recipe, ready in about 25 minutes, pairs beef tenderloin steaks, butter, olive oil 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.

Ingredients

• 4 (6 oz) beef tenderloin steaks
• 2 tbsp butter
• 2 tbsp olive oil
• 1 cup, sliced mushrooms
• 4 cloves, minced garlic
• 2 tbsp Dijon mustard
• 1/4 cup beef broth
• 1 tbsp, chopped fresh thyme
• 1/2 tsp salt
• 1/4 tsp black pepper

The pan we’d use for this → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Pat 4 (6 oz) beef tenderloin steaks dry with paper towels and season both sides with 1/2 tsp salt and 1/4 tsp black pepper.
2. Step 2: Heat 1 tbsp butter and 1 tbsp olive oil in a skillet over medium-high heat until butter foams. Add steaks and sear for 3-4 minutes per side for medium-rare, then remove and set aside.
3. Step 3: In same skillet, add remaining 1 tbsp butter and 1 tbsp olive oil, then add 1 cup sliced mushrooms and 4 minced garlic cloves. Sauté for 4-5 minutes until mushrooms are golden and garlic is fragrant.
4. Step 4: Return steaks to skillet, then add 2 tbsp Dijon mustard, 1/4 cup beef broth, and 1 tbsp fresh thyme. Reduce heat to low and simmer for 3-4 minutes, spooning sauce over steaks until sauce thickens slightly and steaks are coated.