Party Roast Beef Sandwiches
Ingredients ½ cup prepared horseradish 1 (12 count) package Hawaiian bread rolls, split 12 slices deli roast beef 12 slices deli-sliced Swiss cheese ½ cup butter 1 onion, finely chopped 2 tablespoons brown sugar 1 tablespoon spicy brown mustard 1 ½ teaspoons Worcestershire sauce 1 pinch garlic powder, or to taste 2 teaspoons poppy seeds…
