These baked ham and cheese party sandwiches are perfect for any gathering. They are easy to make, delicious, and sure to be a hit with your guests. The combination of savory ham and melted swiss cheese on soft hawaiian rolls is irresistible.
If you don't usually keep hawaiian rolls or poppy seeds in your pantry, you might need to pick them up at the supermarket. Hawaiian rolls are sweet and fluffy, adding a unique flavor to the sandwiches. Poppy seeds add a slight crunch and a hint of nuttiness to the topping mixture.

Ingredients For Baked Ham And Cheese Party Sandwiches
Ham: Thinly sliced deli ham, providing a savory and salty flavor.
Swiss cheese: Slices of swiss cheese, known for its mild and slightly nutty taste.
Hawaiian rolls: Soft, sweet rolls that complement the savory fillings.
Butter: Melted butter to create a rich and flavorful topping.
Dijon mustard: Adds a tangy and slightly spicy kick to the topping mixture.
Poppy seeds: Provide a subtle crunch and nutty flavor to the sandwiches.
Minced onion: Adds a bit of sweetness and texture to the topping mixture.
Technique Tip for Making These Sandwiches
When preparing these baked ham and cheese party sandwiches, ensure that the melted butter mixture is evenly distributed over the rolls. This can be achieved by using a pastry brush to spread the mixture, ensuring each sandwich gets a uniform coating. This technique helps the flavors of the dijon mustard, poppy seeds, and minced onion to permeate the bread and fillings, resulting in a more flavorful and cohesive dish.
Suggested Side Dishes
Alternative Ingredients
ham - Substitute with turkey: Turkey provides a similar texture and flavor profile, making it a suitable alternative for those who prefer poultry.
swiss cheese - Substitute with provolone cheese: Provolone melts well and has a mild flavor that complements the other ingredients.
hawaiian rolls - Substitute with brioche rolls: Brioche rolls have a similar sweetness and soft texture, making them a good replacement.
melted butter - Substitute with olive oil: Olive oil can provide a similar richness and moisture to the sandwiches.
dijon mustard - Substitute with honey mustard: Honey mustard adds a bit of sweetness while still providing the tangy flavor of mustard.
poppy seeds - Substitute with sesame seeds: Sesame seeds offer a similar crunch and nutty flavor.
minced onion - Substitute with shallots: Shallots have a milder, sweeter flavor that can enhance the overall taste without overpowering it.
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How To Store or Freeze These Party Sandwiches
- Allow the baked sandwiches to cool completely before storing. This prevents condensation from making the rolls soggy.
- Wrap each sandwich individually in plastic wrap or aluminum foil. This ensures they stay fresh and prevents them from sticking together.
- Place the wrapped sandwiches in an airtight container or a resealable plastic bag. This helps maintain their flavor and texture.
- Store the container or bag in the refrigerator if you plan to eat the sandwiches within 3-4 days. For longer storage, place them in the freezer.
- To freeze, label the container or bag with the date. This helps you keep track of how long the sandwiches have been stored.
- When ready to eat, thaw frozen sandwiches in the refrigerator overnight. This ensures they defrost evenly.
- Reheat the sandwiches in a preheated oven at 350°F (175°C) for about 10-15 minutes, or until they are warmed through and the cheese is melted. This brings back their original texture and flavor.
- Alternatively, you can reheat them in a microwave for 1-2 minutes, but be aware that the rolls may become slightly chewy.
How To Reheat Leftovers
Preheat your oven to 350°F (175°C). Place the leftover baked ham and cheese party sandwiches on a baking sheet. Cover them with aluminum foil to prevent drying out. Bake for about 10-15 minutes, or until the cheese is melted and the sandwiches are heated through.
For a quicker method, use a microwave. Place the sandwiches on a microwave-safe plate. Cover them with a damp paper towel to retain moisture. Microwave on medium power for 1-2 minutes, checking halfway through to ensure they are evenly heated.
If you have an air fryer, preheat it to 320°F (160°C). Place the sandwiches in the air fryer basket in a single layer. Heat for 3-5 minutes, or until the ham and cheese are warmed through and the tops are slightly crispy.
For a stovetop method, use a skillet over medium heat. Place the sandwiches in the skillet and cover with a lid. Heat for about 2-3 minutes on each side, or until the cheese is melted and the sandwiches are warmed through.
If you prefer a toaster oven, preheat it to 350°F (175°C). Place the sandwiches on the toaster oven tray. Cover with aluminum foil and heat for 10-12 minutes, or until the cheese is melted and the sandwiches are hot.
Best Tools for Making These Sandwiches
Oven: Used to bake the sandwiches at the specified temperature.
Baking dish: Holds the rolls and sandwiches during baking.
Knife: Used to cut the rolls in half.
Small bowl: For mixing the melted butter, dijon mustard, poppy seeds, and minced onion.
Spoon: Used to mix the ingredients in the small bowl.
Aluminum foil: Covers the sandwiches during the initial baking phase to keep them moist.
Measuring cup: Measures the melted butter.
Measuring spoons: Measures the dijon mustard, poppy seeds, and minced onion.
How to Save Time on Making These Party Sandwiches
Pre-slice the rolls: Cut the hawaiian rolls in half ahead of time and store them in an airtight container to save time during assembly.
Pre-mix the sauce: Combine the melted butter, dijon mustard, poppy seeds, and minced onion in advance and refrigerate. Just reheat slightly before pouring over the sandwiches.
Layer ingredients efficiently: Lay out all the ham and swiss cheese slices on a tray for quick assembly.
Use pre-cooked ham: Opt for pre-cooked ham to cut down on preparation time.
Prepare in batches: If making for a large group, assemble multiple trays at once and bake them together.

Baked Ham and Cheese Party Sandwiches
Ingredients
Main Ingredients
- 12 slices Ham
- 12 slices Swiss Cheese
- 12 rolls Hawaiian Rolls
- ½ cup Butter melted
- 1 tablespoon Dijon Mustard
- 1 tablespoon Poppy Seeds
- 1 tablespoon Minced Onion
Instructions
- Preheat oven to 350°F (175°C).
- Cut the rolls in half and place the bottom halves in a baking dish.
- Layer ham and cheese on the rolls, then place the top halves back on.
- In a small bowl, mix melted butter, Dijon mustard, poppy seeds, and minced onion.
- Pour the mixture evenly over the sandwiches.
- Cover with aluminum foil and bake for 15 minutes. Remove foil and bake for an additional 5 minutes, or until the tops are golden brown.
- Serve warm and enjoy!
Nutritional Value
Keywords
Suggested Main Courses and Desserts for This Recipe
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