This pot roast cheddar grilled cheese is AMAZING! Leftover pot roast, topped with sauteed onions, cheddar and sandwiched between buttered bread and grilled.

Is it weird that I purposefully made pot roast so I could make this sandwich?

Pot Roast and Cheddar Grilled Cheese Sandwiches - -

I was so excited that I went to bed at night thinking “Tomorrows the day! I’m making a pot roast cheddar grilled cheese!”  I just know all my fellow grilled cheese addicts are nodding their heads and totally picking up what I’m laying down. I mean it makes so much sense; saucy shredded beef, sandwiched between TWO layers of white cheddar, topped with sautéed onions and grilled on buttered bread until crispy and golden. Amazeballs, yeah I said it.

So as you can imagine I about died after the first bite. The beef. The cheese. The ONIONS! It’s crazy good and total comfort food in grilled cheese form. Which technically grilled cheese already is comfort food so this means this sammich has doubled the comfort factor. I believe this is just what you weekend needs.


Like all good things, start with a couple tablespoons of butter in a skillet preheated on medium low heat.

slice thin

Then halve and slice up a medium sized yellow onion very thin.

onions and salt

Next, add the onions into to the buttery skillet and season with a couple pinches of kosher salt. Give them a toss in the butter and slowly cook them until they are soft and slightly golden.


Then, once cooked, remove them to a plate for a second and move onto the bread buttering and sandwich building.


Next, butter the bread.  I used whole grain bread; try to use a bread that that’s sturdier and can handle the load better than let’s say your typical white bread.

pot roast

Then top with a slice of white cheddar and copious amounts of shredded pot roast. Ohhhhhhh yes.

more cheddar and the onions

Next, add the a second slice of cheddar and divide the sautéed onions among the two sandwiches.

grill it

Then grill on both sides until golden or slightly burnt if you’re like me, flip and repeat. :p

This pot roast cheddar grilled cheese is delicious.


So cheesy.

Totally amazing.

Very comforting.

Did I mention cheesy?

Enjoy! And if you give this Pot Roast Cheddar Grilled Cheese recipe a try, let me know! Snap a photo and tag me on twitter or instagram!

Pot Roast Grilled Cheese l

My cookbook Simply Scratch : 120 Wholesome Homemade Recipes Made Easy is now available! CLICK HERE for details and THANK YOU in advance! 

Leftover Pot Roast Grilled Cheese Sandwiches
Yield: 2 sandwiches

Leftover Pot Roast Grilled Cheese Sandwiches

Take your pot roast leftovers to a whole new level.

Prep Time 15 minutes
Cook Time 8 minutes
Additional Time 7 minutes
Total Time 30 minutes


  • 1 medium yellow onion, peeled, halved and sliced thin
  • 2 pinches kosher salt
  • 2 tablespoons butter, plus more for buttering bread
  • 4 slices sturdy whole grain bread
  • 4 slices of white cheddar
  • 1-1/2 cups (give or take) leftover shredded pot roast


  1. In a 10-inch skillet add the two tablespoons of butter. Heat over medium-low heat until melted.
  2. Add in the sliced onion and a couple pinches of salt and stir to coat in the butter. Let the onions cook slowly, stirring occasionally until they are soft and lightly golden.
  3. Butter the bread and top two of the un-buttered sides with a slice of cheddar, the shredded pot roast, more cheddar and dived the sautéed onions among the two sandwiches.
  4. In the same skillet the onions were cooked in; add the sandwich, butter-side down and cook until deeply golden. Flip and repeat. Do the same for the next sandwich.
  5. Cut in half and serve.
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