Beef & Kielbassa Sandwiches

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Beef & Kielbassa Sandwiches w/ Caramelized Onions & Cheddar Horseradish Sauce


Beef & Kielbassa Sandwiches

These tasty Beef & Kielbassa Sandwiches with Caramelized Onions & Cheddar Horseradish Sauce are sure to please your family.

Serve this Beef & Kielbassa Sandwich with some fresh Super Simple Slow-Cooker Split Pea Soup, Canadian Cheese Soup or some Parma Rosa Tomato Soup.

  • Author: Adam @unorthodoxepicure


  • 1 lb – Deli roast beef, sliced very thinly
  • 13 oz pkg – Polska Kielbasa, sliced about ½-inch thick and warmed (I use a skillet)
  • 1 – Large yellow onion, sliced
  • 1 TB – Vegetable oil
  • 6 – Sandwich rolls, toasted

  • Cheddar Horseradish Sauce

  • ½ cup – Mayonaise
  • ⅓ cup – Sharp Cheddar, grated into fine shreds
  • 1 TB – Prepared horseradish
  • 1 TB – Stone ground mustard
  • 1 tsp – Louisiana-style hot sauce
  • 1 tsp – Freshly ground black pepper


  1. Caramelize the onions & Fry the Sausage – In a sauté pan or large skillet, heat vegetable oil to medium. Add sliced onion. Turn occasionally with spatula until onions are limp and lightly browned, about 10 minutes. Remove and set aside.
  2. Turn up the heat to medium-high and give the kielbasa slices a quick 5 minute sauté.
  3. Make the sauce – While onion is cooking, combine sauce ingredients in microwave-safe bowl. Place in microwave for about 10-15 seconds, until cheese is melted.
  4. Whisk until totally combined and melted cheese is blended into sauce. – You may alternatively do this step over medium-low heat in a small saucepan.
  5. Assemble the sandwiches – Place a good three-finger pinch of onion on the bottom of the roll; top with generous amount of roast beef and 4-5 sausage slices. Spread sauce on the top roll and add a couple of extra dollops over meat.


  • Serving Size: 6
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