
Mini Corned Beef Grilled Cheese sandwiches are the kind of satisfying snack that brings a big smile even on busy weeknights. These crispy cheesy bites pack all the flavors of a classic Reuben into easy to share mini form making them an absolute favorite for game days after school snacks or whenever you need savory comfort in a flash.
Every time I make these for my friends the whole batch disappears before I can even sit down. The combination of textures and flavors makes this a standout recipe in my appetizer rotation.
Ingredients
- Rye or sourdough bread: each adds its own flavor and texture look for bread with a tight crumb and hearty crust for best results
- Butter softened: spreads easily for that perfect crispy golden exterior
- Dijon mustard: adds a zippy depth or skip if you are not a mustard fan opt for a smooth Dijon with balanced heat
- Swiss cheese: brings creaminess and nutty notes choose a good quality cheese that melts easily for the ultimate pull
- Cooked corned beef: thinly sliced or shredded use deli slices or leftovers from homemade for best flavor
- Sauerkraut: tangy and crunchy make sure to drain and pat dry so your sandwiches stay crisp
- Thousand Island dressing: classic for dipping gives an extra punch of sweet and tangy flavor to each bite
Instructions
- Prepare the Bread:
- Lay out your bread slices on a clean surface and spread a generous layer of softened butter evenly on one side of each slice. This butter is key for giving the sandwich its signature golden crust.
- Add the Flavor:
- On the opposite unbuttered sides of the bread spread a thin layer of Dijon mustard if you like that sharp kick. Mustard helps balance the richness without overpowering the other elements.
- Layer the Fillings:
- Set slices of Swiss cheese down on half of the bread slices over the mustard. Top each with a portion of shredded or sliced corned beef then spoon on a little sauerkraut making sure it is not too wet to avoid soggy sandwiches.
- Build the Sandwiches:
- Cover each stack with the remaining bread slices buttered side facing out to ensure both sides get crisp and golden during cooking. Gently press the sandwiches to help hold everything together.
- Cut into Mini Portions:
- Slice each assembled sandwich into quarters using a sharp serrated knife to create bite sized pieces. This not only makes them cute and fun but they cook more evenly and are easy to share.
- Grill to Perfection:
- Preheat your skillet or griddle over medium heat. Arrange the mini sandwiches in the pan with space between each piece. Cook for two to three minutes per side gently pressing down with a spatula until the bread is deeply golden and the Swiss melts into everything else.
- Let Them Rest:
- Carefully remove the hot sandwiches to a plate and let them cool briefly. This rest helps the cheese set slightly and makes them easier to handle.
- Serve with Style:
- Arrange the minis on a platter and serve warm with a side of Thousand Island dressing for dipping. The dressing truly completes the Reuben experience in every bite.

Swiss cheese is what brings everything together for me. Its gentle creamy flavor really smooths out the tang of the sauerkraut and the saltiness of the beef. Growing up we made these mini grilled cheeses on snow days and I have very fond memories of handing them out to shivering kids coming in from sledding.
Storage Tips
Cool leftovers completely before storing in an airtight container lined with a paper towel to absorb moisture. They reheat best in a toaster oven for crispiness. If making ahead consider keeping the sandwiches ungrilled in the fridge then cooking just before serving for the freshest crunch.
Ingredient Substitutions
Turkey or pastrami can replace corned beef for a lighter protein. Provolone or cheddar make tasty cheese swaps. Try using a different robust bread if rye or sourdough is not available. If you do not have Thousand Island dressing Russian dressing or even a little mayo mixed with ketchup and relish works well in a pinch.
Serving Suggestions
Serve these minis as party appetizers finger food for movie nights or alongside hot soup for a cozy meal. Add a little dill pickle on the plate for extra zing. They also make a hearty after school snack served with carrot sticks or apple slices.
Cultural and Historical Context
Inspired by the iconic Reuben sandwich which became popular in mid twentieth century American delis this mini grilled cheese version simplifies the tradition. It keeps all the rich flavors of classic deli fare but makes them accessible for gatherings and families who crave something both nostalgic and fun.
Seasonal Adaptations
Use coleslaw instead of sauerkraut for a summer barbecue vibe. Add a slice of ripe tomato for bright flavor in late summer. In winter try adding a layer of caramelized onions for sweetness and warmth.
Success Stories
Many have told me these mini sandwiches become their go to for game night and potlucks. One neighbor requests them every year for her family’s March gathering and says nothing else makes her kitchen smell so good or disappears so quickly.
Freezer Meal Conversion
You can assemble the sandwiches in advance and freeze them before grilling. Place in a single layer on a sheet pan until firm then wrap and store in a zip top bag. When ready to eat thaw briefly and grill from cold for the same delicious results.

These mini Reuben inspired sandwiches are quick to make and crowd pleasing. You will love how tasty and fun they are to share.
Recipe FAQs
- → What bread works best for these minis?
Rye or sourdough are ideal for a traditional flavor and sturdy texture that holds up well when grilled.
- → Can I substitute cheeses?
Yes, Swiss is classic, but provolone or mozzarella can be used for a milder or different melt.
- → How do I keep the sandwiches from getting soggy?
Patting sauerkraut dry and spreading butter on the outside ensures crisp, non-soggy bread every time.
- → What sauce pairs well as a dip?
Thousand Island dressing is a tangy, creamy choice that complements the corned beef and Swiss.
- → Can these be made ahead?
They're best served warm, but you can assemble the minis in advance and grill them just before serving.