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    Home / Best Filet Mignon Recipe (Keto & Low Carb) 🥩

    Best Filet Mignon Recipe (Keto & Low Carb) 🥩

    Feyza Kırmacı
    by Feyza Kırmacı
    Updated: Aug 13,2024
    1 Comment
    4 from 1 votes

    Jump to Recipe Jump to Video Print Recipe

    Prepare yourself for an easy but impressive Filet Mignon recipe. This delightful keto steak dinner is simply delicious, juicy, and satisfying. And the best part? It's a breeze to make, so you can indulge in your steak cravings in a jiffy!

    Filet mignon recipe cooked in a cast iron skillet.
    Jump to:
    • Preparation and cooking overview
    • Chef's note
    • 🥩 Ingredients for this filet mignon recipe
    • Ingredient substitutions
    • Additional ingredients
    • Cooking tools required
    • Tools substitute options
    • How to make Filet Mignon: step-by-step guide
    • Cooking methods
    • Preparation steps
    • Cooking instructions
    • What to serve with filet mignon?
    • How to choose the best filet mignon?
    • How to make it healthier?
    • What can I prepare ahead of time?
    • Storage and reheating instructions
    • Recipe wrap-up and conclusion
    • Frequently asked questions
    • 📖 Recipe

    Preparation and cooking overview

    Preparing this Filet Mignon requires just 20 minutes. Season the steaks with salt and pepper, and pan-sear them in a hot cast-iron skillet. Next, baste them with an aromatic mixture of butter and herbs, and that's it! You will get a perfect filet mignon without any hassle!

    Chef's note

    Enhance the flavors by adding a tablespoon of keto-friendly red wine during searing. Wine will tenderize the meat and add a delightful sweetness. Alternatively, you can create a delicious steak sauce. After removing the steaks, add wine or balsamic vinegar to the pan, scrape any browned bits, and simmer to reduce the sauce. Finish by stirring in a dollop of butter and drizzling the sauce over the steaks before serving.

    • Prep Time: 5 minutes
    • Cooking Time: 10 minutes
    • Rest Time: 5 minutes
    • Total Time: 20 Minutes
    • Difficulty Level: Easy
    • Recipe Makes 2 Servings

    For more inspiration check out our Beef recipe.

    🥩 Ingredients for this filet mignon recipe

    To cook a restaurant-style tender steak, you will need these simple ingredients:

    • 2 filet mignon steaks, 2-inches thick (6-8 ounces each)
    • 2 tablespoons olive oil
    • 2 tablespoons unsalted butter
    • 2 fresh garlic cloves
    • 2 sprigs of fresh rosemary
    • 2 sprigs of fresh thyme
    • Sea salt and freshly cracked pepper, to taste
    Ingredients made ready to prepare filet mignon recipe.

    Ingredient substitutions

    • Olive oil: Substitute with an equal amount of avocado oil.
    • Fresh rosemary and thyme: If you don't have these, swap them for some fresh sage or oregano. These aromatic substitutes will add a unique spin to your steak.

    Additional ingredients

    Add extra flavor to this recipe with a few additions. But note that the ingredients are entirely optional:

    • Crumbled blue cheese: Sprinkle some crumbled blue cheese on your steak right after you take it off the skillet. Blue cheese goes really well with steak because its rich and tangy flavor complements the savory taste of the meat.
    • Balsamic vinegar: Drizzle high-quality balsamic vinegar in the skillet while basting the steaks for an enhanced flavor.
    • Chili flakes: For a fiery kick, sprinkle some chili flakes on the steak while it's cooking.
    • Lemon zest: Dust some lemon zest over the steaks to add a citrus flavor.
    • Fresh parsley: Garnish the dish with freshly chopped parsley for added freshness.
    Tenderloin filet recipe.

    Cooking tools required

    To make this Filet Mignon recipe, you will need the following kitchen tools:

    • Cast iron skillet
    • Tongs
    • Spoon
    • Cutting board
    • Knife
    • Plate
    • Meat thermometer
    • Paper towels

    Tools substitute options

    • Cast iron skillet: If you don't have a cast-iron skillet, use a good-quality stainless steel pan. Just remember to adjust the heat as needed.
    Keto filet mignon in a cast iron skillet.

    How to make Filet Mignon: step-by-step guide

    Cooking methods

    • Pan-searing

    Preparation steps

    1. Gather and measure all the ingredients.
    2. Pat the beef cuts with paper towels.
    3. Rinse and pat dry the sprigs of rosemary and thyme.
    4. Peel the garlic cloves.

    Cooking instructions

    1. Season with steak seasoning: sea salt and freshly crushed black pepper.
    2. Press the seasonings into the meat with your hand to ensure proper coating, and set them aside.
    3. Preheat your cast iron skillet over medium-high heat.
    4. Add the olive oil to the hot skillet and swirl it around to coat the bottom evenly.
    5. Once the oil is hot, place the seasoned steaks in a single layer.
    6. Sear for 4-5 minutes on each side for medium-rare doneness. Also, sear the sides by using tongs.
    7. Meanwhile, add the butter, garlic, and fresh herbs to the skillet.
    8. Tilt the skillet slightly and use a spoon to baste the steaks with the melted butter.
    9. Remove the seared steaks from the skillet after they reach an internal temperature of 135°F (57°C).
    10. Transfer them to a cutting board or a plate.
    11. Let them rest for a few minutes to allow the flavors to meld.
    12. Garnish with fresh herbs or a sprinkle of chopped parsley before serving.
    Seasoning the filet mignon steaks.
    Filet mignon steaks about to be cooked in a cast iron pan.
    Cooking the filet mignon steaks in a pan.
    Seasoning the mignon steaks with herbs.
    Measuring the temperature of filet mignon steaks being cooked.

    Chef's pro tip

    Here's a helpful tip for the perfectly cooked filet mignon. Take the steaks out of the fridge approximately 30 minutes before cooking. Allow them to come to room temperature. After searing, let the steaks rest for 5 minutes. The resting time redistributes the flavorful juices, resulting in a juicier steak.

    What to serve with filet mignon?

    Pair these juicy steaks with other keto-friendly options for a complete meal:

    • Creamy cauliflower mash: Serve the filet mignon over a bed of creamy Cauliflower Mash for a low-carb side.
    • Garlicky green beans: Our Garlic Butter Green Beans are a great pairing option with this delicious dish.
    • Grilled asparagus: The smoky taste of grilled asparagus pairs perfectly with the meat's richness. You can also try our Mediterranean Asparagus for an additional flavor boost.
    • Grilled vegetables: Nothing can beat the amazing flavors of Grilled Vegetables! They add a nice crunch and loads of fiber to a meaty dish. You can also try Fried Eggplant With Tomato Sauce as a perfect addition to the steak.
    • Greek salad: A crisp, refreshing Greek Salad provides a light and tangy contrast to the hearty dish.
    Keto filet mignon.

    How to choose the best filet mignon?

    When buying the cut, consider these factors to get the best steak.

    • Quality: Opt for filet mignon from high-quality sources, such as prime-grade beef. High-quality beef ensures superior tenderness, marbling, and flavor.
    • Size and thickness: Filet mignon steaks are typically cut into individual portions, ranging in thickness from around 1.5 to 2 inches.
    • Marbling: Look for filet mignon with moderate marbling, which refers to the thin streaks of fat running through the meat.
    • Butcher's assistance: Don't hesitate to ask your butcher for help. They can guide you in selecting the filet of the highest quality cuts.

    How to make it healthier?

    • Reduce salt: Use less salt in the seasoning. Trust us, your steak will still be packing a punch.
    • Make it dairy-free: Swap butter with coconut or extra virgin olive oil if you want a dairy-free version. These alternatives keep your recipe dairy-free and add a layer of subtle, unique flavors.
    Slices of filet mignon on a plate, garnished with herbs.

    What can I prepare ahead of time?

    • Season the steaks: Season the filet steaks with salt, pepper, fresh lemon juice, and olive oil up to 24 hours in advance. This will save you time on the cooking day and allow the salt to penetrate deeper into the meat, enhancing the flavor.

    Storage and reheating instructions

    Storage instructions

    • Refrigerator: If you have leftover steaks, place them in an airtight container and refrigerator. They will remain fresh for 3-4 days.
    Filet mignon seasoned with herbs served on a plate.

    Reheating best practices

    • Oven: Preheat the oven to 250°F (120°C). Place the leftovers in an oven-safe skillet or baking sheet, cover with aluminum foil, and heat for 15-20 minutes.
    • Stovetop: Heat the leftovers in a skillet over medium heat until warmed thoroughly. Add two tablespoons of butter to retain the moisture in the meat.

    Recipe wrap-up and conclusion

    Our Filet Mignon recipe is a true treat for steak lovers on a low-carb or keto diet. We're all about tender cuts of meat bursting with mouthwatering flavors. And you know what sets this recipe apart? It's incredibly simple!

    So, don't wait any longer! Put on your apron, and let's get cooking. Our easy-to-follow recipe will turn your regular steak into an extraordinary culinary experience.

    Filet mignon recipe served on a plate along with cutleries.

    Looking for more keto steak recipes? Here are some delicious options:

    • Steak and Greens
    • Keto Steak Roll-Ups
    • Keto Pepper Steak
    • Tuna Steak Recipe
    • Cast Iron Steak
    • Sirloin Steak
    • Keto London Broil
    • Keto Tri-Tip with Creamy Avocado Chimichurri

    Frequently asked questions

    Yes, it is a high-quality cut of beef with minimal carbohydrates. It is rich in protein and healthy fats, making it an excellent choice for those following a ketogenic lifestyle.

    The calorie content of filet mignon can vary depending on the size and thickness of the cut. On average, a 6-ounce serving of filet mignon contains approximately 420-450 calories. Check our recipe card for detailed nutrition information.

    Filet mignon is a low-carb cut of meat. A 6-ounce serving typically contains less than 1 gram of carbohydrates, making it an ideal choice for those on a ketogenic diet.

    Filet mignon comes from beef tenderloin, a long and cylindrical muscle along the cow's backbone. It is one of the most tender and prized cuts of beef due to its minimal connective tissue.

    The best way to cook filet mignon is by pan-searing and finishing it in the oven. It creates a seared crust and a tender, juicy interior. Start by searing the steak in a hot cast-iron skillet, then transfer it to a preheated oven to cook to the desired level of doneness.

    Use a meat thermometer to check the internal temperature to ensure the filet mignon is cooked properly. For medium-rare, it should read 135°F (57°C). Cooking times vary based on thickness: 4-5 minutes per side for medium-rare, 5-6 minutes for medium, and 6-8 minutes for medium-well. Adjust cooking time to achieve the desired doneness.

    The best way to cook filet mignon is pan-searing as it creates a nice crust and flavorful juices of the steak. You can also bake or grill the steak, depending on your preference.

    If your butter starts to burn, it might be because your skillet is too hot. Reduce the heat to low and add more butter or olive oil. Alternatively, remove the skillet from the heat to let it cool down before continuing.

    📖 Recipe

    Filet mignon.

    Filet Mignon

    This Filet Mignon recipe is a simple and satisfying keto-friendly option, featuring perfectly cooked steak seasoned with herbs and butter.
    4 from 1 vote
    Print Rate Pin Recipe
    Course: dinner, Main Course
    Keyword: easy, Filet mignon, keto steak dinner, low carb, steak dish
    Prep Time: 5 minutes minutes
    Cook Time: 10 minutes minutes
    Resting Time: 5 minutes minutes
    Total Time: 20 minutes minutes
    Servings: 2
    Calories: 697kcal

    Ingredients

    • 2 filet mignon steaks 2-inches thick (6-8 ounces each)
    • 2 tablespoons olive oil
    • 2 tablespoons unsalted butter
    • 2 fresh garlic cloves
    • 2 sprigs of fresh rosemary
    • 2 sprigs of fresh thyme
    • Sea salt and freshly cracked pepper to taste
    US Customary - Metric

    Instructions

    • Season with steak seasoning: sea salt and freshly crushed black pepper.
    • Press the seasonings into the meat with your hand to ensure proper coating, and set them aside.
    • Preheat your cast iron skillet over medium-high heat.
    • Add the olive oil to the hot skillet and swirl it around to coat the bottom evenly.
    • Once the oil is hot, place the seasoned steaks in a single layer.
    • Sear for 4-5 minutes on each side for medium-rare doneness. Also, sear the sides by using tongs.
    • Meanwhile, add the butter, garlic, and fresh herbs to the skillet.
    • Tilt the skillet slightly and use a spoon to baste the steaks with the melted butter.
    • Remove the seared steaks from the skillet after they reach an internal temperature of 135°F (57°C).
    • Transfer them to a cutting board or a plate.
    • Let them rest for a few minutes to allow the flavors to meld.
    • Garnish with fresh herbs or a sprinkle of chopped parsley before serving.

    Video

    Nutrition

    Nutrition Facts
    Filet Mignon
    Amount Per Serving
    Calories 697 Calories from Fat 567
    % Daily Value*
    Fat 63g97%
    Saturated Fat 24g150%
    Trans Fat 0.5g
    Polyunsaturated Fat 3g
    Monounsaturated Fat 29g
    Cholesterol 149mg50%
    Sodium 86mg4%
    Potassium 545mg16%
    Carbohydrates 1g0%
    Fiber 0.3g1%
    Sugar 0.04g0%
    Protein 31g62%
    Vitamin A 427IU9%
    Vitamin C 3mg4%
    Calcium 28mg3%
    Iron 4mg22%
    *

    Nutritional values are estimates only and do not include carbs from sugar alcohols.

    # Hashtag with us!Don't forget to mention @castiron_keto or tag #castironketo on Instagram with your creations! We love seeing what you're making.
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    Reader Interactions

    Comments

    1. Michele says

      September 05, 2025 at 7:50 pm

      4 stars
      What if I want my steak medium well? Do I just cook it longer?

      Reply
    4 from 1 vote

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