Pan-Seared Beef Tenderloin with Mushroom Cream Sauce
A restaurant-quality main course featuring perfectly seared beef tenderloin smothered in a rich, earthy mushroom sauce made with heavy cream and fresh thyme. This american-inspired beef (keto) ready in about 40 minutes blends Beef tenderloin, Olive oil, Butter into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 620 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. 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
- 1.5 lbs Beef tenderloin
- 2 tbsp Olive oil
- 2 tbsp Butter
- 8 oz Mushrooms
- 3 cloves Garlic
- 1/2 cup Heavy cream
- 1 tsp Fresh thyme
- 1/2 tsp Salt
- 1/4 tsp Black pepper
Instructions
- Step 1: Pat the beef tenderloin dry with paper towels and season both sides with 1/2 tsp salt and 1/4 tsp black pepper. Heat 1 tbsp olive oil in a large cast-iron skillet over medium-high heat until shimmering. Sear the beef for 3 minutes per side until a deep brown crust forms.
- Step 2: Reduce heat to medium, add 1 tbsp butter and the sliced mushrooms to the skillet. Cook for 5 minutes, stirring occasionally, until mushrooms are golden and release their liquid. Add minced garlic and cook for 1 minute until fragrant.
- Step 3: Pour in 1/2 cup heavy cream and 1 tsp fresh thyme, then reduce heat to low. Simmer for 3 minutes until sauce thickens slightly. Add remaining 1 tbsp butter and stir until melted. Slice beef and serve with mushroom sauce.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Pan-Seared Beef Tenderloin with Mushroom Cream Sauce take to make?
Total time is about 40 minutes (15 min prep + 25 min cook). A small batch typically covers several meals in the week — store as the recipe directs.
How do I store leftover Pan-Seared Beef Tenderloin with Mushroom Cream Sauce?
Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.
Can I substitute ingredients in Pan-Seared Beef Tenderloin with Mushroom Cream 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 Pan-Seared Beef Tenderloin with Mushroom Cream 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.
Is Pan-Seared Beef Tenderloin with Mushroom Cream Sauce keto?
Yes — this recipe is tagged keto based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
What others are saying
- ★★★★★
My whole family loved this.
- ★★★★★
Made with what I had on hand and it still came out great.
- ★★★★★
Added this to my weekly meal rotation. So satisfying.
