Filet mignon is a tender and juicy cut of beef that melts in your mouth. It’s known for its rich flavor and buttery softness, making it a favorite for special dinners.
Cooking filet mignon is easy! Just a little salt and pepper, a hot pan, and it’s ready in no time. I like mine with a simple side salad—it makes for a fancy night in!
Key Ingredients & Substitutions
Filet Mignon: This cut is prized for its tenderness. If you can’t find filet mignon, tenderloin steaks or sirloin steaks can work in a pinch, though they may require different cooking times.
P potatoes: I use Russet potatoes for creamy mashed potatoes, but Yukon Golds also work well, providing a buttery flavor. You can even swap in cauliflower for a lighter option!
Asparagus & Red Bell Peppers: Fresh veggies add color and nutrition. If asparagus isn’t available, try green beans or broccoli. Any bell pepper can substitute, too, for a pop of flavor.
How Do I Achieve Perfectly Cooked Filet Mignon?
Cooking filet mignon can seem intimidating, but it’s simpler than it looks! The key is to sear it properly and check the internal temperature.
- Pat the steaks dry to achieve a nice crust.
- Season generously with salt and pepper; don’t rush this step!
- Preheat your pan until it’s very hot, but not smoking. This ensures a great sear.
- Cook for about 3-4 minutes on each side for medium-rare. Use a meat thermometer for accuracy—130°F is ideal!
- Let the steaks rest for 5 minutes after cooking; this helps the juices redistribute for that perfect bite.

Filet Mignon with Mashed Potatoes and Sautéed Asparagus and Red Bell Peppers
Ingredients:
- 2 filet mignon steaks (6-8 oz each, about 1.5-2 inches thick)
- Salt and freshly ground black pepper, to taste
- 2 teaspoons crushed red pepper flakes (optional, for seasoning)
- 2 tablespoons olive oil or vegetable oil
- 2 tablespoons butter
- 4 medium potatoes, peeled and chopped
- 1/4 cup milk (or cream), warmed
- 2 tablespoons butter (for mashed potatoes)
- Salt and pepper, to taste (for mashed potatoes)
- 1 bunch asparagus, trimmed and cut into 2-inch pieces
- 1 red bell pepper, diced
How Much Time Will You Need?
This recipe takes about 30-40 minutes from start to finish. Allow yourself some time for preparing the ingredients, cooking the steak to perfection, and enjoying your meal!
Step-by-Step Instructions:
1. Prepare the Mashed Potatoes:
Start by placing the chopped potatoes in a large pot and covering them with cold salted water. Bring the pot to a boil and cook until the potatoes are tender enough to poke with a fork—this usually takes about 15-20 minutes. Once they’re cooked, drain the water and return the potatoes to the pot. Add in 2 tablespoons of butter, your warmed milk or cream, and a sprinkle of salt and pepper. Mash everything together until it’s smooth and creamy. Keep them warm while you prepare the rest of the meal.
2. Cook the Asparagus and Bell Peppers:
Next, heat 1 tablespoon of olive oil in a skillet over medium heat. Toss in your cut asparagus and diced red bell pepper. Sauté them until they’re tender but still a bit crisp, which should take about 5-7 minutes. Don’t forget to add a pinch of salt and pepper for flavor! Once they’re cooked, take them off the heat and set aside for later.
3. Prepare the Filet Mignon:
Now, it’s time to get that steak ready! Pat your filet mignon steaks dry with paper towels. Season both sides generously with salt, freshly ground black pepper, and crushed red pepper flakes if you like a little heat. In a heavy skillet (cast iron is great), heat 2 tablespoons of olive oil over high heat until it’s really hot but not smoking—this will help get a nice sear on your steaks!
4. Sear the Steaks:
Place the seasoned steaks in the hot skillet and let them sear without moving them for about 3-4 minutes until a beautiful brown crust forms. Once they’re nice and crusty, flip them over and sear the other side for another 3-4 minutes. In the last minute of cooking, add 2 tablespoons of butter to the skillet and baste the melted butter over the steaks for extra flavor.
5. Check Doneness:
For medium-rare, you’ll want to aim for an internal temperature of about 130°F (54°C). Depending on their thickness, this will be roughly 3-4 minutes per side. If you’d prefer them rarer or more well done, you can adjust the cooking time accordingly. After cooking, remove the steaks from the heat and let them rest for 5 minutes under a tent of foil to keep them warm.
6. Plate:
Finally, it’s time to serve! On each plate, place a hearty serving of the creamy mashed potatoes. Surround the potatoes with the sautéed asparagus and red bell peppers. Then, add the perfectly cooked filet mignon steaks alongside. Drizzle some of those delicious pan juices over the steak for added flavor. If you’d like, finish it off with extra crushed red pepper flakes or a sprinkle of fresh herbs.
Enjoy your delicious, perfectly seared filet mignon served with creamy mashed potatoes and vibrant sautéed vegetables!
Can I Use Frozen Filet Mignon?
Yes, you can use frozen filet mignon! Just make sure to thaw it completely in the fridge overnight or use the cold water method (sealed in a plastic bag) for quicker thawing. Always pat it dry before cooking for a better sear.
How Do I Store Leftover Filet Mignon?
Store leftovers in an airtight container in the fridge for up to 3 days. You can reheat them gently in a skillet over low heat or in the microwave, adding a splash of broth or water to maintain moisture.
Can I Prepare the Mashed Potatoes in Advance?
Absolutely! You can make mashed potatoes ahead of time. Allow them to cool, then store in an airtight container in the fridge. Reheat gently, adding a bit of milk or cream to restore creaminess.
What Can I Serve Instead of Mashed Potatoes?
If you’re looking for alternatives to mashed potatoes, try creamy polenta, cauliflower mash, or even a side of quinoa. Each offers a unique flavor and texture that pairs well with filet mignon!



