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Buttery Co-Jack & Swiss Pastrami Sliders

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Football season never tasted so good!! 😀 I’ve been on a slider kick lately, and my hubby and I are now completely addicted! These are the third ones that I’ve made in the past month or so, and we are really enjoying these for a late lunch/early supper that aren’t too heavy, and easy to whip together during this busy season! They reheat nicely in the oven, too! That is, if you actually have any leftover! 😉 

The first ones I made were equally as wonderful, and are currently my hubby’s personal favorite, my Glazed Ham Sliders with Pineapple & Brie! The second ones, which gave me the idea to make the ones I’m sharing today, were for The Secret Recipe Club and a wonderful recipe of Nicole’s that we very much enjoyed called Saucy Roast Beef & Swiss Sliders! Nicole inspired me to do my own take on her version of the classic ham ones, and I went the pastrami route! I kicked them up with lots of goodies and they, too, turned out phenomenal!

Personally, I loved them all equally, and any of them would be very much welcomed and devoured at a tailgating party! 😀 


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So simple to make and assemble. They really move right along quickly! Just split open the rolls and top with kale, pastrami, co-jack and swiss, and some sautéed onions. Yes — those are actually onions. And they were SO GOOD. Even my hubby made a special comment on them. 


One thing, though. (And this made me so mad when I downloaded my photos and saw my red onions so nicely piled on top.) Just so your guests don’t think that you’re mad at them  –  –  you might want to chop your onions instead of slicing them as I did. Mine looked like some kind of exotic purple sea creatures from the Black Lagoon! Gawd. Still mad. Moving on. 


😀 Then spread the inside tops with a little of the horseradish-mayo! 😀  <— Smiling again! 


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If taking these to a party, go ahead and assemble them and put them on a baking sheet or shallow baking dishes and cover them with foil. Melt your buttery topping sauce ingredients in a small plastic container, stir to mix and cover well. Put the poppy seeds in a small container such as a cleaned out Tic-Tac dispenser, small jar or baggie, or even a small swatch of plastic wrap and a twist tie. Works for me! 😉 

Then you can simply reheat the butter sauce in their microwave, drizzle it over the sliders, sprinkle them with the poppy seeds, and bake! (If you’d rather not have to wash anything, just line your baking sheet with foil as well.) Easy, and no mess for the hostess of the party to have to deal with! 😉  Trust me, you’ll be invited back. 😉  


pastrami sliders drizzled


These are all drizzled with the yummy warm butter sauce that has a light flavor of spicy brown mustard, worcestershire sauce, and onion! Soooo good! Then topped with a really nice amount of poppy seeds. 😀   


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These only take a total of 12 minutes in the oven and moments from the lips! The gooey cheese is just starting to melt and they’re completely heated through! 


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These were, quoting my hubby, “Tasty little buggers!” I even snuck in a little swiss that he didn’t seem to mind at all! I think the mixture of the swiss and and the co-jack has finally gotten him to enjoy swiss cheese much more!

These would be a huge hit at any party or get-together!  You can even change up the cheeses if you’d like. Some fun cheeses that you could try that would go well with everything could be some havarti or fontina, gouda, some sharp yellow and white cheddars, a nice spicy pepperjack, or even simply some mozzarella or provolone! 


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And don’t forget to go the whole way and add the sautéed onions, kale and horseradish mayo! These simple ingredients really made these extra special and took these sliders over the top! 


pastrami sliders almost gone


These were CRAZY RIDICULOUS good!! So whether you’re needing a party dish or a quick and easy weeknight supper idea, these are sure to be a huge hit and your family and guests will LOVE them! Make sure you fix up enough of these, though! They disappear like magic!!! 😉 GREAT for football and Super Bowl parties, New Year’s Eve parties, and any other upcoming events you may have! So keep these close in mind! 😉

Hope you all are having a wonderful time decorating the house and getting a jump on all that Christmas and holiday shopping! Take care all, and I’ll see you soon! ~Kelly 



Buttery Co-Jack & Swiss Pastrami Sliders
Yield: 18 sliders

Buttery Co-Jack & Swiss Pastrami Sliders

Prep Time: 15 minutes
Cook Time: 22 minutes
Total Time: 37 minutes


  • 1 Family-Sized pkg. Hawaiian Rolls (18 ct.)
  • 18 pieces of torn kale leaves
  • 18 thin slices deli pastrami
  • 9 slices co-jack cheese, quartered
  • 9 slices swiss cheese, quartered
  • 1/3 cup mayo
  • 1 1/2 tsp. hot horseradish sauce

For Onions:

  • 1 large red onion, sliced or chopped
  • 3 Tbl. butter
  • 1/2 tsp. minced garlic
  • 1/4 tsp. each salt and coarse ground black pepper

For Butter Sauce:

  • 1 stick butter, melted
  • 1 tsp. worcestershire sauce
  • 1 tsp. spicy brown mustard
  • 1 tsp. onion powder
  • 1 Tbl. poppy seeds


  • In small sauté pan, add onion ingredients and sauté until tender, about 8-10 minutes. Set aside.
  • Preheat oven to 350º F.
  • Slice open Hawaiian Rolls carefully with a serrated bread knife. Top each bottom with a piece of kale, a slice of pastrami scrunched and piled up, two pieces of co-jack and two swiss, and a small spoonful of onions.
  • In small bowl, mix mayo and horseradish sauce. Spread inside of top buns with sauce. Place on top of sandwiches and place sandwiches onto a large baking sheet.
  • In medium-small bowl, melt butter in microwave, and stir in rest of Butter Sauce ingredients well. Drizzle over sliders, re-stirring as needed to keep mixed. Sprinkle generously with poppy seeds.
  • Cover loosely with foil and pop into preheated 350º oven. Bake for 8 minutes, remove foil, and continue baking for 4 more minutes.
  • Remove and serve hot.


    This recipe was shared for: Simple Supper Tuesday

    And was chosen as a host favorite! Click here to see!

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    Cindy @ Hun... What's for Dinner?

    Sunday 1st of February 2015

    Oh wow, these sliders look amazing! You are being featured at Simple Supper Tuesday this week. We hope you can join us again, starting at 8pm EST, on Monday night.


    Monday 2nd of February 2015

    Oh wow!! :D Thank you very much, Cindy!! :D You made my day!! :D

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