Steak Sandwiches With Onions & Mushrooms

Prep Time
Cook Time
Ready In

Recipe: #17910

March 11, 2015

"Recipe source: Bon Appetit (March 2004)"

Original recipe yields 4 servings


  • Serving Size: 1 (403.9 g)
  • Calories 685.6
  • Total Fat - 51.6 g
  • Saturated Fat - 23.7 g
  • Cholesterol - 221.4 mg
  • Sodium - 929.3 mg
  • Total Carbohydrate - 33.9 g
  • Dietary Fiber - 2.7 g
  • Sugars - 7.9 g
  • Protein - 23 g
  • Calcium - 212.8 mg
  • Iron - 2.7 mg
  • Vitamin C - 14.6 mg
  • Thiamin - 0.6 mg

Step 1

In a small cup or bowl mix mayonnaise and horseradish together and set aside.

Step 2

In a large skillet over medium high heat melt 1 tablespoon of the butter.

Step 3

Sprinkle steaks with salt and pepper. Add steaks to skillet and cook to desired doneness (5-10 minutes per side). Using tongs transfer steaks to work surface.

Step 4

In the same skillet melt 3 tablespoons butter over medium-high heat and add onions; sauteing until dark brown (20-30 minutes). Add mushrooms and saute until tender (5 minutes). Stir in broth and boil until juices are reduced to a glaze. Season onion/mushroom mixture with salt and pepper.

Step 5

Place one croissant bottom, cut side up, on each of 4 plates. Spread bottom with horseradish mixture and top with 1/2 cup arugula. Thinly slice steaks and divide among croissants. Top each with onion mixture. Spread remaining horseradish mixture on cut side of crossants tops. Place tops on sandwiches.

Tips & Variations

No special items needed.



I scaled this back to two servings which made for a great lunch for two. We enjoyed. I am so impressed with the mayo and horseradish sauce I can see to repeats. It makes for a great addition to the sandwiches.

review by:
(15 May 2019)


These sammies are a delight to eat. These came to be convenient because I used some leftover steak for the beef which I sliced, the rest I followed except that I didn't use the mushrooms because my mushrooms unexpectedly went bad. The sauce is a must as it really pumped the flavor. All the components of these sandwiches made for a success. Thank you ellie for sharing.

review by:
(20 Feb 2016)