Freezer-Friendly Hot Roast Beef and Cheddar Sandwiches - a perfect grab n' go meal for busy weeknights. Warmed brioche buns slathered with zesty poppyseed mayo and piled high with roast beef and cheese.

Hot Roast Beef and Cheddar Sandwiches are one of those "unicorn style" recipes that come together REALLY FAST (8 minutes... I timed myself), but is somehow still worthy of serving when company comes over. In fact, it's one of those recipes that once you make it, you think: How soon is too soon to make it again?
They are bursting with flavor, hello zesty poppyseed mayo, but simple enough to serve to the kids with minimal tears and complaints. Also, and most importably, you have options. Serve them immediately, wrap them up and store them in the refrigerator for a few days OR freeze them. Unicorn I tell ya.
Let's do this.
How To Make Hot Roast Beef Sandwiches:
Step 1: Whip up some poppyseed mayo (dump and stir) and slather it onto the tops and bottoms of a brioche bun.
Next: Add a slice of cheese. I always use white cheddar, but use what you have on hand. This sandwich isn't fussy.
Then: Pile on that thinly sliced roast beef. You could also you ham or turkey, follow your bliss!
Finally: Wrap each individual Roast Beef and Cheddar Sandwich in a foil square. Cook immediately, refrigerate or freeze. Cook's choice!
FAQ's: Hot Roast Beef and Cheddar Sandwiches
What is the best type of roast beef for hot roast beef and cheddar sandwiches?
Purchase your roast beef from the deli counter at your local grocery store. For these sandwiches, meat should be thin sliced, but not shaved. The pictured roast beef was sliced at a "5".
How much roast beef should I purchase per person when making hot roast beef and cheddar sandwiches?
When serving these sandwiches to a crowd I plan on 3 oz. of roast beef for adults and 2 oz. for the kids.
How do you freeze hot roast beef and cheddar sandwiches?
These sandwiches can be frozen for up to 1 month. Wrap them in foil and then store them in an airtight gallon size freezer bag. To thaw, place frozen sandwiches into an oven that has been heated to 350 degrees F. until heated through (about 20 minutes).
Can hot roast beef and cheddar sandwiches be made in advance?
Absolutely. Follow recipe directions, and store wrapped sandwiches in the refrigerator for up to 2 days. To serve, pop foil wrapped sandwiches into an oven heated to 350 degrees F. for 12-15 minutes or until cheese is melted and beef is warmed through.
Where can I buy pre-cut foil squares to wrap my sandwich in?
I purchased a large box (500 count) of Krystal Premium Aluminum Foil Pop Up Sheets last year and find uses for them all the time.
Can I substitute a different deli meat for the roast beef?
Absolutely. I have made these sandwiches with both ham and turkey and sometimes even do a combination of what's left in the fridge.
Can I substitute a different cheese for the white cheddar?
Yes. Don't buy new sliced cheese if you already have some on hand. Flexibility is the best part about these Hot Roast Beef and Cheddar sandwiches.
PrintFreezer Friendly Hot Roast Beef and Cheddar Sandwiches
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Yield: 5 sandwiches 1x
- Category: Main Meal
- Method: Freezer
- Cuisine: American
Description
Freezer-Friendly Hot Roast Beef and Cheddar Sandwiches - a perfect grab n' go meal for busy weeknights. Warmed brioche buns slathered with zesty poppyseed mayo and piled high with roast beef and cheese.
Ingredients
For the Poppyseed Mayo:
- ¼ cup mayonnaise
- 2 Tbsp minced garlic (you can sub garlic paste for no chop option)
- 1 Tbsp poppyseeds
- 1 Tbsp spicy mustard
- 1 Tbsp horseradish sauce
- 1 tsp Worcestershire
- ½ tsp hot sauce
- ¼ tsp salt
- ¼ tsp pepper
For the Sandwiches:
- 5 brioche buns
- 1 lb. roast beef, thinly sliced
- 5 slices white cheddar cheese
Instructions
- In a small bowl, mix mayonnaise, garlic, poppyseeds, mustard, horseradish sauce, Worcestershire, hot sauce, salt and pepper.
- Spread the dressing on the top and bottom of each bun. On each bottom bun, pile on roast beef and 1 slice of white cheddar cheese. Finish by adding the top bun. Repeat with remaining sandwiches.
- Wrap each sandwich tightly in foil.
TO SERVE IMMEDIATELY: Heat oven to 350 degrees F. Place wrapped sandwiches directly onto oven rack and cook until cheese is melted, about 15 minutes.
TO REFRIGERATE: Store wrapped sandwiches in the refrigerator for up to 2 days. To serve, heat oven to 350 degrees F. and place foil wrapped sandwiches directly onto oven rack until cheese is melted, about 15 minutes.
TO FREEZE: Store wrapped sandwiches in the freezer for up to 1 month. To serve, heat oven to 350 degrees F. and placed frozen foil wrapped sandwiches directly onto the oven rack. Cook for 20-25 minutes or until cheese is fully melted.
Keywords: Roast Beef, Cheddar, Sandwich
RECIPES LIKE Hot Roast Beef and Cheddar Sandwiches:
- Super Simple Sloppy Joe Sandwiches
- Instant Pot Pulled Pork Sandwiches
- Juicy Turkey Burgers
- Monterey Chicken Sandwiches
Let’s Be Friends:
You can find Simply Sissom on Instagram where I share even more recipes (some that aren’t on the blog), behind the scenes pics and videos AND tips and tricks to make healthy eating realistic for your busy family.
Did you make this recipe? If you tried the recipe, I would love to see it and have you share! Tag me @simplysissom using the hashtag #simplysissom.
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