Ingredients
– 4 ciabatta rolls (about 6-inches in length each, split in half lengthwise)
– 2 ribeye steaks (about 12 ounces each, 1- to 1-1/2 inch thick, sliced)
– 8 ounces sliced cremini mushrooms
– 1 tablespoon unsalted butter
– 1/2 cup caramelized onions
– 1/2 cup baby arugula
– Kosher salt and freshly-ground black pepper (amounts to taste)
– 1/2 cup mayonnaise for horseradish mayo
– 1 tablespoon sour cream for horseradish mayo
– 1 large garlic clove, minced for horseradish mayo
– 1 to 2 tablespoons refrigerated prepared horseradish, drained for horseradish mayo
– Kosher salt and freshly-ground black pepper (amounts to taste) for horseradish mayo
Instructions
1-First, cook the ribeye steaks to your desired doneness using a butter-basting method for extra richness.Heat a skillet over medium-high and sear the steaks until they’re done, letting them rest afterward to lock in juices.
2-Next, prepare the caramelized onions ahead of time, and for the mushrooms, melt 1 tablespoon unsalted butter in a nonstick skillet over medium-high heat. Sauté 8 ounces of sliced cremini mushrooms with kosher salt and freshly-ground black pepper until the liquid evaporates and they brown, then set them aside.
3-For the horseradish mayo, whisk together 1/2 cup mayonnaise, 1 tablespoon sour cream, 1 minced garlic clove, 1 to 2 tablespoons drained prepared horseradish, kosher salt, and freshly-ground black pepper. Cover and refrigerate for at least 30 minutes to blend the flavors, then adjust the horseradish if needed.
4-To assemble, spread the horseradish mayo on the bottom half of each ciabatta roll. Layer with 1/2 cup baby arugula, sliced steak, the sautéed mushrooms, and 1/2 cup caramelized onions, adding more mayo to the top half if you like. Serve right away while the steak is warm for the best taste. For more sandwich ideas, check out our spiced chicken sandwich recipe on Juicy Cooking.
Last Step:
Please leave a rating and comment letting us know how you liked this recipe! This helps our business to thrive and continue providing free, high-quality recipes for you.Notes
🌶️ Start with less horseradish and adjust after resting to manage heat level.
🧅 Prepare caramelized onions and sautéed mushrooms a day ahead to save time.
🌿 Use well-marbled ribeye and consider grilling during warmer months for best flavor.
- Prep Time: 1 hour 20 minutes
- Cook Time: 30 minutes
- Category: Main Dish
- Method: Sautéing and assembling
- Cuisine: American
Nutrition
- Serving Size: 1 sandwich
- Calories: 729
- Sugar: 2 g
- Sodium: 548 mg
- Fat: 48 g
- Saturated Fat: 16 g
- Carbohydrates: 32 g
- Fiber: 1 g
- Protein: 41 g
- Cholesterol: 124 mg
