This 15-minute air fryer filet mignon is the perfect meal for date night in. Features easy prep, effortless cooking, and minimal cleanup. This tender herb butter steak is melt-in-your-mouth good!

a cooked steak with herb butter on top next to grilled asparagus on a white plate.

What Makes This Recipe Great

Filet Mignon + Air Fryer + Garlic Herb Butter = the easiest, most delicious, and tender steak dinner. This herb butter steak is the perfect cozy dinner for two, or even a quick & easy weeknight meal– you can’t go wrong!

With easy prep and just 10 minutes to cook, this air fryer filet mignon is the easiest way you’ve ever made steak! Serve with a baked potato, asparagus, or your favorite side, and enjoy!

How to Make This Recipe

Ingredient Notes

Filet Mignon steaks: This recipe calls for two 8oz steaks. If you plan to make more, make them in batches so as to not overcrowd your air fryer.

Olive Oil: Avocado oil is fine to use as well.

Salt and Pepper: To taste. Be generous!

Butter: Softened to room temperature. Use vegan butter for dairy-free. In my opinion, Miyokos is the best brand of vegan butter!

Fresh Rosemary & Thyme: Chopped. Fresh is preferred for this herb butter steak, but you could do 1/3 the amount if you need to use dried herbs.

Garlic Powder: If you prefer to use fresh garlic, you can substitute 1 clove minced.

Salt: Add 1/2 tsp total if using unsalted butter.

two seasoned raw steaks in air fryer basket

Step By Step

  1. Prep your Steak: Brush both sides of the filets with olive oil. Sprinkle both sides GENEROUSLY with salt and pepper.
  2. Make your Air Fryer Filet Mignon: Air fry at 400 degrees for 9-10 minutes for rare, 10-11 minutes for medium-rare, 11-12 minutes for medium, 11.5 -13 mins for medium-well, and 14 minutes for well done. Use a meat thermometer to check for the right temperature – 120 degrees for rare, 130 degrees for medium-rare, 140 degrees for medium, 150 degrees for medium-well, or 160 degrees for well done.
  3. Rest: Let the filets rest for 3-5 minutes, then serve with a slice of the garlic herb butter. Enjoy!
two cooked steaks in air fryer basket

Garlic Herb Butter

  1. Soften the Butter: Let the butter and steaks come to room temperature for about 30 minutes. 
  2. Make the Butter: Combine the butter, rosemary, thyme, garlic powder, and salt in a bowl and use a fork to mix it up well. Transfer the butter to a piece of parchment paper. Roll the paper while forming the butter into a log, folding up the paper to cover it completely. Keep the butter in the refrigerator while you make the steaks.
steps to make garlic herb butter

Mary’s Tips & Tricks

Dairy Free: If you need to make this recipe dairy-free, use vegan butter like Miyoko or Earth Balance. If you’re Whole30, feel free to substitute ghee.

Batches: If you need to double the recipe, make your steak in batches so you don’t overcrowd your air fryer. Follow the same directions for subsequent batches.

two white plates with a baked potato, sliced air fryer filet mignon, and asparagus.

FAQs

How many calories in filet mignon?

In 1 steak with 1 tbsp of garlic herb butter, there are 791 calories, 0 net carbs, and 42 grams of protein.

What are other uses for garlic herb butter?

It’s so delicious on so many dishes! Use it for chicken, baked potatoes, garlic bread, and more!

What sides do I serve with herb butter steak?

There are so many delicious sides that go perfectly with this herb butter steak. For keto, stick to these low-carb sides: Thyme Roasted Radishes & Onions or Lemony Prosciutto Wrapped Asparagus. If you’re Whole30 try: Potatoes Au Gratin, Watermelon Cucumber Salad, Broccoli Cauliflower Salad, or Everything Roasted Potatoes.

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Air Fryer Filet Mignon

This 15-minute air fryer filet mignon is the perfect meal for date night in. Topped with garlic herb butter, this tender steak is melt-in-your-mouth good!
5 from 4 votes
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Ingredients

  • 2 8 oz Filet Mignon steaks
  • 1 tbsp olive oil
  • salt and pepper, to taste

Garlic Herb Butter

  • ¼ cup butter, softened to room temperature. use vegan butter for dairy free
  • 1 tsp chopped fresh rosemary
  • 1 tsp chopped fresh thyme
  • 1 tsp garlic powder
  • ¼ tsp salt, add 1/2 tsp total if using unsalted butter

Equipment

Instructions
 

  • Let the butter and steaks come to room temperature for about 30 minutes.
  • Make the butter: Combine the butter, rosemary, thyme, garlic powder, and salt in a bowl and use a fork to mix it up well. Transfer the butter to a piece of parchment paper. Roll the paper while forming the butter into a log, folding up the paper to cover it completely. Keep the butter in the refrigerator while you make the steaks.
  • Brush both sides of the filets with olive oil. Sprinkle both sidess GENEROUSLY with salt and pepper.
  • Add the steaks to the air fryer basket. Air fry at 400 degrees for 9-10 minutes for rare, 10-11 minutes for medium rare, 11-12 minutes for medium, 11.5 -13 mins for medium well, and 14 minutes for well done. Use a meat thermometer to check for the right temperature – 120 degrees for rare, 130 degrees for medium rare, 140 degrees for medium, 150 degrees for medium well, or 160 degrees for well done.
  • Let the filets rest for 3-5 minutes, then serve with a slice of the garlic herb butter. Enjoy!

Notes

Dairy Free: If you need to make this recipe dairy-free, use vegan butter like Miyoko or Earth Balance. If you’re Whole30, feel free to substitute ghee.
Batches: If you need to double the recipe, make your herb butter steak in batches so you don’t overcrowd your air fryer. Follow the same directions for subsequent batches.

Nutrition

Serving: 1filet with 1 tbsp herb butter, Calories: 791kcal, Carbohydrates: 1g, Protein: 42g, Fat: 68g, Saturated Fat: 29g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 29g, Trans Fat: 1g, Cholesterol: 189mg, Sodium: 494mg, Potassium: 717mg, Fiber: 1g, Sugar: 1g, Vitamin A: 404IU, Vitamin C: 2mg, Calcium: 25mg, Iron: 6mg