Make This Easy Keto Reuben in a Mug in Just 2 Minutes

Name: Keto Reuben in a Mug
Prep time: 10 min
Cook time: 2 min
Yield: 1
Cuisine: American
Ingredients: 3.5 oz prepared corned beef, thinly sliced; 2 tablespoons chopped yellow onion; 1 teaspoon caraway seeds; 1 teaspoon avocado oil; ½ cup shredded cabbage; ¼ cup sauerkraut, drained; ¼ cup shredded Swiss cheese; 2 tablespoons cup real mayo; 1 tablespoon unsweetened ketchup; 1 teaspoon dill pickle relish; 1/2 teaspoon white vinegar; 1/2 teaspoon granulated keto sweetener (such as monk fruit)

By Lina | Recipe/DIY Content Creator

Mar 06, 2025 @ 7:00 AM MST

Keto Reuben in a Mug

yield: 1 SERVINGS

prep time: 10 MINUTES

cook time: 2 MINUTES

total time: 12 MINUTES

Ingredients

For the Reuben:

3.5 oz prepared corned beef, thinly sliced
2 tablespoons chopped yellow onion
1 teaspoon caraway seeds
1 teaspoon avocado oil
½ cup shredded cabbage
¼ cup sauerkraut, drained
¼ cup shredded Swiss cheese

For the Keto Thousand Island Dressing:

2 tablespoons cup real mayo
1 tablespoon unsweetened ketchup
1 teaspoon dill pickle relish
1/2 teaspoon white vinegar
1/2 teaspoon granulated keto sweetener (such as monk fruit)

Directions

Assemble the Reuben in a mug:

Place the corned beef in the bottom of a large mug. Add the onions, caraway seeds, and avocado oil. Mix. Add in the shredded cabbage and sauerkraut.

Microwave on high for one and a half minutes.

Remove from microwave and mix with a fork. Top with Swiss cheese and pop it back in the microwave for 30 seconds or until cheese is melted.

Make the dressing:

Add all the dressing ingredients to a small bowl and whisk to combine. Use a spoon to drizzle dressing over your Reuben in a mug.

Nutrition Information

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Instead of a carby sandwich for lunch, create a super quick keto Reuben in a mug using the microwave!

Reuben sandwiches are undeniably satisfying comfort food.

They’re packed full of mouthwatering flavors: sweet, salty, tangy… what more could you want?! That said, one of the key components of a Reuben is the rye bread, which is a no-go for keto. No worries – we’ve got an easy keto Reuben in a mug to get your fix (including components to mimic the rye bread flavor) without kicking your body out of ketosis!

For starters, what’s in a Reuben?

A traditional Reuben sandwich is made of corned beef, Swiss cheese, sauerkraut, and Russian or Thousand Island dressing, all grilled between slices of rye bread. This recipe is perfect if you have corned beef left over from St. Patrick’s Day!

Our keto-friendly version skips the bread and is cooked in a mug in the microwave instead! And the secret for getting that authentic Reuben flavor without the bread? Caraway seeds! It’s what gives rye bread its distinct flavor.

Tips for making the best Reuben in a mug:

Skip the canned corned beef and use the real thing. I picked up some prepared corned beef at the store in the deli department.

You’ll need either a large coffee mug for this idea or a small microwave-safe bowl.

If you have leftover corned beef brisket from the slow cooker or Instant pot, this would be a fantastic way to use it! Thinly slice the corned beef into strips to keep on hand for a quick Reuben in a mug during the busy week.

If you plan on making this more often, make a couple of batches of the dressing to have on hand so that it will go even faster the 2nd time around!