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Image by The Relucant Gourmet™
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5 from 2 votes

Sliced Steak Sandwich Recipe

Tender leftover steak meets sweet caramelized onions on crispy buttery toast points for an easy, flavor-packed sandwich.
Prep Time15 minutes
Cook Time30 minutes
Total Time45 minutes
Course: Main Course
Cuisine: American
Keyword: steak
Servings: 4 servings

Ingredients

  • 2 large yellow onions thinly sliced into rings
  • 4 tablespoons butter divided
  • 1 pinch salt
  • 4 slices bread white, whole wheat, or your favorite
  • leftover steak thinly sliced
  • salt & pepper to taste

Instructions

Caramelize the Onions

  • Separate the onion rings.
  • Heat a large skillet over medium heat. Add 2 tablespoons of butter.
  • Add the onions and a pinch of salt. Cook slowly over medium-low heat, stirring occasionally, until the onions are soft, golden, and sweetly caramelized (about 20–25 minutes).
  • Set aside.

Prepare the Toast Points

  • Preheat the oven to 350°F (175°C).
  • Remove the crusts from each slice of bread (optional, but recommended for elegant toast points).
  • Cut each slice diagonally into 4 triangles to create “toast points.”
  • Melt the remaining 2 tablespoons of butter. Brush one side of each toast point with butter, reserving a little for drizzling later.
  • Arrange the toast points on a baking sheet, buttered side up. Toast in the oven for 2–3 minutes, then flip and toast the other side for another 1–2 minutes until golden brown.
    Watch closely to avoid burning.

Assemble the Sandwiches

  • Place 4 toast points on each plate.
  • Top each with a few slices of leftover steak. Drizzle a little of the reserved melted butter over the steak for richness.
  • Spoon a generous amount of caramelized onions on top.
  • Season with a touch of salt and freshly ground black pepper. Serve immediately.

Notes

Tips & Twists:

  • Add a smear of Dijon mustard or horseradish on the toast points for a zesty kick.
  • Sprinkle a bit of crumbled blue cheese or shredded Gruyère over the steak for an extra layer of flavor.
  • Serve with a simple arugula salad on the side to balance the richness.