Steak Sandwich is a hearty and flavorful sandwich loaded with tender and thinly-sliced steak, green vegetables, caramelized onions and mustard, along with the delicious toasted buns.
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5 from 1 vote

Steak Sandwich

Steak Sandwich is a hearty and flavorful sandwich loaded with tender and thinly-sliced steak, green vegetables, caramelized onions and mustard, along with toasted buns
Prep Time15 mins
Total Time15 mins
Course: Main Course
Cuisine: American
Keyword: Steak Sandwich
Servings: 4 people
Calories: 1360kcal
Author: Cindy

Ingredients

  • 1 ½ pound sirloin steak
  • salt and pepper to taste
  • 2 tablespoons vegetable oil
  • 3 large onions peeled and sliced
  • 4 ounces arugula or other greens
  • Mustard
  • 4 Ciabatta bread
  • Butter

Instructions

Seared Steak

  • Start by seasoning the steak generously with salt and pepper. Heat up a large cast iron skillet over high heat for 1 minute.
  • Add 1 tablespoon oil and wait until it’s shimmering before adding the steak.
  • Fry for 2 minutes and then flip over. Fry on the other side for 3 more minutes until the steak mostly browned on the outside and rare in the middle.
  • Remove steak to a cooling rack and let rest for 5 minutes, then slice thinly.

Caramelized Onions

  • Heat 1 tablespoon of the oil in a large skillet over medium heat.
  • Add onions and cook for about 10 minutes, until deep golden and softened, stirring frequently. Transfer to a plate and set aside.

Steak Sandwiches

  • Lightly butter the bread and toast until golden.
  • Remove from oven and top the bottom half of bread with arugula and caramelized onions.
  • Place a layer of the thin steak slices on top, and spread mustard on top.
  • Season with more salt and pepper if necessary.
  • Cover the sandwiches with the top half of the bread.

Notes

  • Let the steak rest at room temperature for 30 minutes before cooking for the best results
  • Make sure to let the steak rest for about 5 minutes so that the juice can redistribute before cutting.
  • Cut the steak against the grain into thin slices.
  • To caramelize onions properly, make sure to have a single layer of onion slices in the pan so they don’t steam. The onions should be very soft with golden brown color, yet not mushy.

Nutrition

Calories: 1360kcal | Carbohydrates: 219g | Protein: 77g | Fat: 18g | Saturated Fat: 10g | Cholesterol: 103mg | Sodium: 2312mg | Potassium: 806mg | Fiber: 6g | Sugar: 4g | Vitamin A: 675IU | Vitamin C: 10.4mg | Calcium: 112mg | Iron: 3.4mg