Recipe By Susan Gee
Published Apr 2nd
Prep 15m Cook 35m Additional - Ready In 50m
Servings 12 servings Calories 483.5

Great for potlucks!

Recipe Ingredients

  • cooking spray (such as Crisco®)
  • ½ cup butter
  • 1 onion, minced
  • 3 tablespoons Dijon mustard
  • 1 tablespoon poppy seeds
  • 2 teaspoons Worcestershire sauce, or more to taste
  • 1 (12 count) package Hawaiian sweet rolls, split, or more as needed
  • 1 pound sliced deli ham, or more as needed
  • 8 slices Swiss cheese, or more as needed

Cooking Directions

  1. 1 Preheat oven to 350 degrees F (175 degrees C). Spray a 9x13-inch baking dish with cooking spray.
  2. 2 Melt butter in a saucepan over medium-low heat; cook and stir onion until softened, 5 to 10 minutes. Add mustard, poppy seeds, and Worcestershire sauce; cook and stir for 5 minutes.
  3. 3 Arrange the bottoms from each roll in the prepared baking dish. Spoon 2/3 the onion mixture over the roll bottoms. Add ham and Swiss cheese to each roll. Put tops of rolls over the Swiss cheese layer. Brush the remaining 1/3 onion mixture over tops of rolls. Cover dish with aluminum foil.
  4. 4 Bake in the preheated oven for 15 minutes. Remove aluminum foil and bake until tops of rolls are lightly browned, 5 to 10 minutes.

Nutrition Facts

  • Calories 483.5
  • Carbohydrate 46.5 g
  • Cholesterol 99.3 mg
  • Fat 16.5 g
  • Fiber 2.7 g
  • Protein 25.7 g
  • Saturated Fat 13.4 g
  • Sodium 898.6 mg
  • Sugar 0.8 g


  1. The only change I made was using reconstituted dried minced onion. These things are addictive! I've made these several times. If you separate your rolls rather than leaving them hooked together they turn out better - at least mine did! Don't skip the step of spreading some of the butter mixture on the rolls before - Read more ...
  2. These sandwiches are simply awesome and so easy to put together! I live in Sweden, so I don't have access to "slider" buns, not to mention Hawaiian Sweet Bread. So the change I made was to make them on whole wheat rolls -- "regular" size. Which was also practical because I was serving them for - Read more ...
  3. 2/5/17: 48 mini Hawaiian rolls. 1 c. Butter, 1 finely chopped onion, 4 T Dijon mustard, 2 T poppyseed, 4 t worstershire sauce, 2 lb deli ham, 16 slices Swiss cheese.
  4. Have made these soooo many times its ridiculous! It's an addiction I have created amongst family and friends. The only thing I do differently is use way less butter and used dried chopped onion and what really makes it is.....I use a peach or peach-mango preserve on the bottom bun for a sauce and once - Read more ...
  5. Made it for lunch today. I have a house filled with picky eaters and everyone ate at least one or more. :) Did make a few substitutions based on what we had on hand. I used 1/2 tsp celery seed instead of poppy seeds, and onion powder rather than real onion. Also, turkey and provolone - Read more ...
  6. I have made this several times with the exception, I use dried minced onions and omit the poppy seeds. Also, I make ahead of time (at least 3 hours) and refrigerate. This allows the bread to absorb the butter which creates a caramelized bottom bun!!! Always a big hit!!!
  7. I followed the recipe for the most part, but did not use onions or poppy seeds, and made just 4 sandwiches. I used black forest ham and substituted Swiss for Havarti cheese. My husband LOVED this recipe, and described it as "restaurant-quality". This recipe would be easy to make for a larger group, and would - Read more ...
  8. Been making these for a long time...copycat recipe!!!
  9. Deeeelicious! We love this style of sandwich, and this one did not disappoint! We really liked how with this recipe, you put two-thirds the butter-onion mixture in the sandwich rather than all of the mixture on the top. To mince the onion, I just put it in my small chopper and let it do the - Read more ...

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