Skip to Content

Ham-less Swiss Cheese Hot Sliders {Grandma’s Recipe}

Oven-baked, foil-wrapped, ham-less Swiss Cheese Hot Slider Sandwiches! An easy vegetarian alternative for simple party food. The poppyseed, butter and onion sauce is the key! Great for tailgating, parties or other gatherings.

Ham-less Swiss Cheese Hot Slider Sandwiches after baking
THIS is the reason I made homemade sweet pickle relish and from-scratch Kaiser rolls.These Swiss cheese and “special sauce” sandwiches are another recipe from my Grandma's collection.For many low-key family gatherings she often makes a ham and cheese version for the majority of the family, but for the few vegetarians in the group she also makes a special batch without ham.

(They also go great served with her pea salad.)

Technically I'm not sure if I should be calling these sliders, because those are often known as mini burgers. But google also tells me the term could have originated from hot sandwiches that “slide” down easily.

A stretch? Maybe. But we're going to go with it because what else do I call it? It's not a grilled cheese. A “baked cheese sandwich” doesn't have the same ring to it.

My grandma simply calls them the ham and cheese sandwiches, so leaving out the ham presents a dilemma – calling this a simple cheese sandwich does it no justice. And if you're someone upset over me calling these sliders, you're probably also one of the people who argue with me about my apple nachos. I see you. It'll be okay.

Who knew naming a recipe could be such a tricky thing?

So “sliders” or not, let me get on to telling you the recipe for these delicious (and super simple) Swiss cheese hot sandwiches.

Ham-less Swiss Cheese Hot Slider Sandwiches cut in half

Your family may have a similar ham and cheese hot sandwich recipe, as I've seen them often referred to as Hawaiian sandwiches (made on Hawaiian rolls). But this recipe has a few key differences.

The “special sauce” is simply melted butter, honey mustard (instead of regular mustard), sweet pickle relish, extra poppy seeds and chopped onion.

Side note: If you're using honey mustard or relish straight from the fridge, it'll probably be cold enough to solidify your melted better, and you'll need to melt it again for easier spreading. Same applies if you save some sauce for later use.
Melted butter with poppy seeds for Ham-less Swiss Cheese Hot Slider Sandwiches Recipe

Butter and onion sauce for preparing Ham-less Swiss Cheese Hot Slider Sandwiches

Now for the bun: I've used regular hamburger buns, as evidenced by many of the pictures, but it is even THAT much better on a crusty bun (like French hamburger buns or Kaiser rolls). Since poppy seeds are in the sauce, I think they play nicely with poppy seeds on Kaiser's too.

The cheese: I like to buy the package of thinly sliced Swiss Cheese, where it comes in lat least 20 slices per 8 oz. pack. (Sometimes 40!) That way you have at least a good 2-3 slices per sandwich you can layer or cut in half as needed.

Layering the Swiss cheese slices on either side of the bun with the sauce in the middle is the best way to put them together if refrigerating (or freezing) for later, so that the bread doesn't get soggy! {Great way to prep ahead!}

You could also just keep the extra sauce refrigerated and apply fresh to sandwiches when ready to bake.

But if making right away I usually put the sauce right on the bread, on top of the cheese, and on the other piece of bread. Layer it up.
Prepping Ham-less Swiss Cheese Hot Slider Sandwiches

You then wrap each one in foil (or foil packets) and bake at 350° F until cheese melts.

15 minutes is usually a good amount of time.

Can even heat them on a grill if you're tailgating!
Ham-less Swiss Cheese Hot Slider Sandwiches before baking

Ham-less Swiss Cheese Hot Slider Sandwiches before baking in foil
THEN if you have extra sauce left over, I like to add some right on top for extra buttery goodness.

Or make more sandwiches, your call.

But the sauce is oh so good.
Ham-less Swiss Cheese Hot Slider Sandwiches after baking with extra butter sauce
I'm telling you, these are always a hit! It's not uncommon for people to grab 2 or 3 of these at a time because they are so good. And they “slide” right down 🙂
Ham-less Swiss Cheese Hot Slider Sandwiches cut in half

Yield: 8 sandwiches

"Ham-less" Swiss Cheese Hot Sliders Sandwiches

Ham-less Swiss Cheese Hot Slider Sandwiches cut in half

Oven-Baked, Foil-wrapped, Ham-less Swiss Cheese Hot Slider Sandwiches! An easy vegetarian alternative for simple party food. The poppyseed, butter and onion sauce is the key!

Prep Time 5 minutes
Cook Time 15 minutes
Total Time 20 minutes

Ingredients

Instructions

  1. Make the sauce: in a small bowl, combine melted butter, honey mustard, and sweet pickle relish together. (Note: if honey mustard or relish is cold, you may need to re-melt the butter mixture once combined.) Stir in the poppy seeds and chopped onion.
  2. Layer the Swiss cheese and butter mixture on the buns, cutting the cheese slices to match the size of bun if needed.
  3. Wrap each sandwich in foil. Heat in oven at 350°F. until cheese melts, about 15 minutes. Serve hot!

Notes

*Can use other rolls (like hamburger buns or French hamburger buns) but I find the Kaiser rolls with poppy seeds to be the best combination!

**Try to get a thinly sliced Swiss Cheese with 20 or more slices in a pack. Then you can add 2-3 slices per sandwich! Or if cutting your own block of Swiss cheese, it would be about 1 oz. per sandwich.

***Can wrap sandwiches in foil and refrigerate or freeze for later baking. See post for make-ahead tips.

Nutrition Information:

Yield:

8

Amount Per Serving: Calories: 213Total Fat: 18gSaturated Fat: 9gTrans Fat: 0gUnsaturated Fat: 8gCholesterol: 44mgSodium: 124mgCarbohydrates: 5gFiber: 0gSugar: 3gProtein: 8g

Nutrition information is calculated automatically by an online tool at Nutritionix. It is not always accurate. Please use your own tools to check if you rely on this information.

Did you make this recipe?

I'd love to see! Tag @trialandeater on Instagram and hashtag it #trialandeater . Want more recipe and meal ideas? Click here to add your name to the list for our exclusive emails!

Oven-baked, foil-wrapped, ham-less Swiss Cheese Hot Slider Sandwiches! An easy vegetarian alternative for simple party food. The poppyseed, butter and onion sauce is the key! Great for tailgating, parties or other gatherings.

Spaghetti Squash with sauteed mushrooms, tomato and onion. A low-carb, gluten-free and vegan meal full of vegetables and flavor.
Previous
Spaghetti Squash with Mushrooms
Chili White Button Mushrooms - sliced mushrooms caramelized in garlic and olive oil, topped with chili flakes and parsley. A deliciously easy, spicy and unexpected veggie side dish!
Next
Caramelized Chili White Button Mushrooms