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Hot Roast Beef Sandwiches with Onion Jam

Hot roast beef sandwiches with layers of shaved roast beef on garlic rolls topped with melted mozzarella and a homemade onion jam.

Prep Time
5 mins
Cook Time
5 mins
Total Time
35 mins
Servings: 4 sandwiches
Calories: 1117 kcal
Course: Main Course
Cuisine: Italian

Ingredients

For the garlic rolls
  • 8 tablespoons unsalted butter
  • 1/4 cup olive oil
  • 5 cloves garlic grated
  • 1/4 teaspoon crushed hot red pepper flakes optional
  • 1/4 cup minced flat-leaf Italian parsley
  • salt to taste
  • 4 large hard rolls
  • 3 tablespoons grated Pecorino Romano
For the onion jam
  • 1/4 cup olive oil
  • 3 large sweet onions diced, about 2 pounds
  • 1/2 teaspon kosher salt
  • 3/4 cup sugar
  • 1 cup balsamic vinegar
  • 1/2 teaspoon dried thyme
For the sandwiches
  • 4 large garlic rolls from above
  • 1 pound shredded or roast beef
  • 1/2 pound sliced mozzarella cheese
  • 1 cup Onion Jam from above

Instructions

For the garlic rolls
    Cup of Yum
  1. Preheat oven to 350f and set the first rack in the middle and the other rack to the top 1/3 of the oven.
  2. Saute the garlic in the butter and oil for 2-3 minutes over medium-low heat or until fragrant. Turn off the heat and add in the crushed red pepper flakes and parsley along with a pinch of salt (to taste).
  3. Cut the rolls open and distribute the garlic butter all over the inside of each roll. Sprinkle with the Pecorino then place the rolls on a baking sheet and cover with foil.
  4. Bake for 12 minutes on the lower rack then remove the foil and move the bread to the higher rack. Broil for 1-3 minutes or until the bread is golden around the sides and sizzling but not burnt. Watch the whole time and be prepared to remove it quickly.
For the onion jam
  1. Saute the onions in olive oil over medium heat until golden (about 15 minutes).
  2. Add the salt, sugar, balsamic vinegar, and thyme. Cook for another 10 minutes or until the jam has thickened.
  3. Taste test and adjust salt, pepper, and sugar levels to taste. Pour the jam into a bowl and set aside.
For the sandwiches
  1. Place the roast beef then top with mozzarella on the bottom half of each roll, dividing evenly. Place just the bottom sides onto a baking sheet and broil until the cheese melts (about 2-3 minutes). Watch carefully!
  2. Spread the onion jam on top of the sandwiches then place the top rolls onto the sandwich. Enjoy!

Notes

  • 3/4 cup of sugar will yield a moderately sweet onion jam. Feel free to use more or less sugar to taste. 
  • Leftovers can be saved in the fridge for up to 3 days and can be reheated in the oven wrapped in foil at 350f until warm.

Nutrition Information

Calories 1117kcal (56%) Carbohydrates 82.4g (27%) Protein 56.7g (113%) Fat 63.7g (98%) Saturated Fat 27g (135%) Cholesterol 199mg (66%) Sodium 624mg (26%) Potassium 733mg (21%) Fiber 3.7g (15%) Sugar 44.6g (89%) Calcium 535mg (54%) Iron 24mg (133%)

Nutrition Facts

Serving: 4sandwiches

Amount Per Serving

Calories 1117

% Daily Value*

Calories 1117kcal 56%
Carbohydrates 82.4g 27%
Protein 56.7g 113%
Fat 63.7g 98%
Saturated Fat 27g 135%
Cholesterol 199mg 66%
Sodium 624mg 26%
Potassium 733mg 16%
Fiber 3.7g 15%
Sugar 44.6g 89%
Calcium 535mg 54%
Iron 24mg 133%

* Percent Daily Values are based on a 2,000 calorie diet.