Ingredients

• 0.5 cups prepared horseradish
• 1 , 12 count
• 12 slices deli roast beef
• 12 slices deli-sliced Swiss cheese
• 0.5 cups butter
• 1 onion , finely chopped
• 2 tablespoons brown sugar
• 1 tablespoon spicy brown mustard
• 1.5 teaspoons Worcestershire sauce
• 1 pinch garlic powder , or to taste
• 2 teaspoons poppy seeds

Instructions

1. 1 Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking dish.
2. 2 Spread horseradish on the bottoms of the Hawaiian bread rolls. Top each with 1 slice roast beef and 1 slice Swiss cheese, then cover with top bread rolls. Place sandwiches in the prepared baking dish.
3. 3 Melt butter in a saucepan over medium heat. Cook and stir onion, brown sugar, spicy mustard, Worcestershire sauce, and garlic powder in butter until onion is soft and translucent, about 5 minutes. Pour over sandwiches and sprinkle rolls with poppy seeds. Cover the dish with aluminum foil.
4. 4 Bake in the preheated oven until heated through, about 25 minutes. Remove foil and continue baking until tops are lightly browned, about 10 minutes.

Nutrition per serving