Open-Faced Steak Sandwich with Caramelized Onion and Tomato Relish – Hearty, Savory, and Satisfying

This sandwich is a savory blend of tender steak slices, rich caramelized onions, and tangy tomato relish, served on toasted bread for a satisfying bite.

Ingredients

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

  • Steak (ribeye, flank, or sirloin)
  • Olive oil
  • Salt and pepper
  • Garlic, minced
  • Onions
  • Tomatoes
  • Balsamic vinegar
  • Brown sugar (optional)
  • Rustic bread
  • Fresh parsley

Directions

  1. Season and sear the steak. Slice once rested.
  2. Caramelize onions. Add garlic, tomatoes, balsamic, and sugar to create a relish.
  3. Toast bread slices.
  4. Assemble sandwich with steak, relish, and parsley. Serve warm.

Servings and timing

Serves: 2–4
Prep: 10 min | Cook: 30 min

Variations

  • Add cheese like provolone or blue cheese
  • Include greens like arugula
  • Use mushrooms for extra umami

Storage/reheating

Store toppings separately for up to 3 days. Reheat steak gently and toast fresh bread before serving.

FAQs

(10 full questions were included in the full article)

Conclusion

A bold, flavorful sandwich that’s perfect for lunch or dinner and guaranteed to impress.

Print
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Open-Faced Steak Sandwich with Caramelized Onion and Tomato Relish – Hearty, Savory, and Satisfying

Open-Faced Steak Sandwich with Caramelized Onion and Tomato Relish – Hearty, Savory, and Satisfying

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  • Author: Olivia
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: 4 open-faced sandwiches 1x
  • Category: Main Course
  • Method: Stovetop
  • Cuisine: American
  • Diet: Halal

Description

A hearty and savory open-faced sandwich layered with juicy slices of steak, sweet caramelized onions, and a tangy tomato relish—perfect for a satisfying lunch or casual dinner.


Ingredients

Scale
  • 1 lb flank or skirt steak
  • Salt and black pepper to taste
  • 1 tablespoon olive oil
  • 1 tablespoon butter
  • 2 large onions, thinly sliced
  • 1 teaspoon brown sugar
  • 1 tablespoon balsamic vinegar
  • 1 cup cherry tomatoes, halved
  • 1 teaspoon olive oil (for relish)
  • 1 teaspoon red wine vinegar
  • 1/2 teaspoon dried oregano
  • 4 slices rustic bread (sourdough or ciabatta), toasted
  • Fresh arugula or baby greens (optional)

Instructions

  1. Season steak with salt and pepper. Let it rest at room temperature for 15–20 minutes.
  2. Heat 1 tablespoon olive oil in a skillet over medium-high heat. Sear steak for 3–4 minutes per side (for medium-rare), or until desired doneness. Let rest before slicing thinly against the grain.
  3. In a separate pan, melt butter over medium heat. Add onions and cook for 15–20 minutes, stirring occasionally, until deeply golden. Add brown sugar and balsamic vinegar, cook 2 more minutes, then remove from heat.
  4. For the relish, toss cherry tomatoes with 1 tsp olive oil, red wine vinegar, and oregano. Season with salt and pepper.
  5. To assemble, top toasted bread with a handful of arugula (optional), sliced steak, caramelized onions, and a spoonful of tomato relish.
  6. Serve immediately while warm.

Notes

  • Flank or skirt steak works well, but ribeye can be used for extra richness.
  • Make onions and relish ahead to save time.
  • Try with goat cheese or provolone for extra creaminess.

Nutrition

  • Serving Size: 1 sandwich
  • Calories: 480
  • Sugar: 6g
  • Sodium: 420mg
  • Fat: 24g
  • Saturated Fat: 8g
  • Unsaturated Fat: 14g
  • Trans Fat: 0g
  • Carbohydrates: 34g
  • Fiber: 3g
  • Protein: 35g
  • Cholesterol: 75mg

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