How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Beef Fillets With Stilton Portabella Sauce?

You need 10 ingredients. The key ingredients include: 6 (6 ounce) beef tenderloin fillets, 2 teaspoons chopped fresh tarragon, 1/2 teaspoon fresh ground pepper, 5 tablespoons butter, and more.

Is Beef Fillets With Stilton Portabella Sauce suitable as meat & poultry?

Yes, Beef Fillets With Stilton Portabella Sauce falls under the Meat & Poultry category and is a great choice for this type of meal.

How do I store leftover Beef Fillets With Stilton Portabella Sauce?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Beef Fillets With Stilton Portabella Sauce Recipe

Name: Beef Fillets With Stilton Portabella Sauce
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 6 (6 ounce) beef tenderloin fillets; 2 teaspoons chopped fresh tarragon; 1/2 teaspoon fresh ground pepper; 5 tablespoons butter; 8 ounces portabella mushroom caps, sliced; 1/3 cup dry red wine; 1/2 cup sour cream; 3 ounces Stilton cheese or 3 ounces blue cheese, crumbled; Garnish; 1 sprig fresh tarragon

Try this homemade Beef Fillets With Stilton Portabella Sauce recipe the whole family will love. Made with beef tenderloin, tarragon, fresh ground pepper…

This Beef Fillets With Stilton Portabella Sauce relies on simple, everyday ingredients such as chopped fresh tarragon, fresh ground pepper, butter and dry red wine. It comes together quickly and makes 4 servings, at about 657 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Meat & Poultry

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

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Beef Fillets With Stilton Portabella Sauce

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions