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Roast Beef Sliders with Caramelized Onions

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by: Tablespoon Kitchens
Updated Aug 30, 2018
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If the piles of tender roast beef on top of pull-apart Hawaiian rolls don’t get you, surely the combination of caramelized onions, horseradish mayonnaise and Swiss cheese will. Basically, you need this sandwich bake in your life, and you need it now.

More About This Recipe

  • As far as party food goes, these roast beef sliders are everything. They’re easy to make, bake beautifully in the oven and can feed a hungry crowd. While it may seem like extra work to first caramelize the onions, they provide a lot of rich, sweetness that matches perfectly with the roast beef, so don’t skip this step! Using a whole sheet of dinner rolls is the easiest way to create a lot of mini sandwiches very quickly that are easy to serve. Just let your guests break off what they want and enjoy. And while any 12-count package of dinner rolls can work, for extra deliciousness King’s Hawaiian™ savory butter rolls work the best with this recipe. So beef up your party food and make these mouthwatering sliders for your next game day, party, potluck or easy weeknight meal.

Roast Beef Sliders with Caramelized Onions

  • Prep Time 25 min
  • Total 60 min
  • Servings 12
  • Ingredients 9
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Ingredients

  • 1 tablespoon oil
  • 2 large yellow onions, thinly sliced (about 4 cups)
  • 1/3 cup mayonnaise
  • 1 tablespoon prepared horseradish
  • 1 package (12 oz) 12-count dinner rolls (not pulled apart)
  • 12 oz deli roast beef (about 12 slices)
  • 4 slices baby Swiss cheese (about 3 oz)
  • 1 tablespoon butter, melted
  • 1 teaspoon finely chopped fresh parsley

Instructions

  • Step 
    1
    Heat oven to 375°F. In 12-inch skillet, heat oil over medium-high heat until hot; cook onions in oil 15 to 20 minutes, stirring frequently, until onions are soft and golden brown. If onions start to stick, stir in 1/4 cup water.
  • Step 
    2
    Meanwhile, in small bowl, mix mayonnaise and horseradish. Slice sheet of dinner rolls in half horizontally; place bottom half in ungreased 13x9-inch (3-quart) baking dish. Spread cut side of roll top with horseradish mayonnaise. Mound roast beef on each roll bottom. Spoon caramelized onions over beef; top with Swiss cheese. Place top half of rolls over cheese.
  • Step 
    3
    In small bowl, stir melted butter and parsley until well mixed. Brush over top of rolls. Bake 19 to 22 minutes or until rolls are golden brown and cheese is melted. Cut into individual sliders, and serve.

Nutrition

210 Calories
11g Total Fat
10g Protein
18g Total Carbohydrate
3g Sugars

Nutrition Facts

Serving Size: 1 Slider
Calories
210
Calories from Fat
100
Total Fat
11g
17%
Saturated Fat
3 1/2g
17%
Trans Fat
1/2g
Cholesterol
25mg
8%
Sodium
490mg
21%
Potassium
150mg
4%
Total Carbohydrate
18g
6%
Dietary Fiber
1g
4%
Sugars
3g
Protein
10g
% Daily Value*:
Vitamin A
2%
2%
Vitamin C
0%
0%
Calcium
10%
10%
Iron
8%
8%
Exchanges:
1 Starch; 0 Fruit; 0 Other Carbohydrate; 0 Skim Milk; 0 Low-Fat Milk; 0 Milk; 0 Vegetable; 0 Very Lean Meat; 1 Lean Meat; 0 High-Fat Meat; 1 1/2 Fat;
Carbohydrate Choice
1
*Percent Daily Values are based on a 2,000 calorie diet.

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