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    Home » Recipes » Fish and Seafood

    Grouper Reuben Sandwich

    Published: Nov 22, 2021 · Modified: Apr 18, 2022 by Karin and Ken · This post may contain affiliate links. Leave a Comment

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    Want to enjoy a delicious classic sandwich in a different way? Try this grouper Reuben sandwich. It's healthy, hearty, and oh so tasty!

    One day we were craving some good food, but we weren't exactly sure what. Neither one of us felt like cooking or take-out. So, I came up with this grouper Reuben recipe and this sandwich hit the spot. My family loved it so much, they asked me to make it again the next day! If you're looking for a new twist on an old favorite, try this grouper Reuben recipe tonight. You won't regret it.

    horizontal image of a grouper sandwich on a wooden cutting board, another sandwich in the background.

    Smoked Meat Sandwich

    Normally, I'm not a huge fan of fish. For me, it's an acquired taste; it has to grow on me. But recently my eyes were opened up to the wonderful world of gourmet sandwiches; specifically gourmet grouper Reubens! I can tell you I didn't need time to acquire a taste for this delicious sandwich. If you haven't tried one yet, then you're in for a real treat! You'll never look at a sandwich quite the same way again.

    Ingredients

    You may not have some of the ingredients to make this grouper Reuben sandwich. But after one quick trip to the grocery store, you'll be glad you made the effort!

    • grouper filets
    • salt
    • olive oil
    • mayo
    • green onions
    • red onion
    • sweet relish
    • horseradish
    • ketchup
    • paprika
    • rye bread
    • sauerkraut
    • Swiss cheese
    • butter

    See the recipe card for quantities.

    How to Make Grouper Reuben Sandwich

    Following this sandwich recipe is broken down in these six steps.

    Step 1: Preheat the oven

    Place oven rack to about 4" away from the broiler. Preheat broiler to high (550ºF)

    Step 2: Prepare the grouper

    Place grouper fillets in a greased casserole dish. Brush grouper with a half tablespoon of oil. Sprinkle salt evenly over filets.

    Step 3: Broil the grouper

    Place casserole dish in the oven. Cook grouper filets for 9 minutes or until fish is opaque and the edges begin to brown. DO NOT FLIP.

    Step 4: Make the sauce

    Combine all ingredients in a medium mixing bowl. Depending on your preference and to alter the flavor, add more salt or horseradish.

    Step 5: Assemble the sandwich

    Layer one slice of bread, sauce, sauerkraut, grouper filet, cheese, and the second piece of bread. Generously butter the top and bottom of each sandwich.

    Step 6: Grill the sandwiches

    Heat a pan over medium heat. Add sandwiches and grill them on each side for about 2 minutes or until they're golden brown and the cheese is melted. Serve immediately.

    two halves of a grouper reuben stacked on top of one another.

    Substitutions

    Don't have the exact ingredients on hand? Or want to change something up? Here are a three helpful tips that will slightly change this Grouper Reuben Sandwich.

    Fish - instead of group, any type of whitefish can be used.

    Cheese - Swap Swiss cheese for Provolone or American cheese to add some tanginess.

    Bread - For gluten-free option, gluten-free bread will work fine.

    Variations

    Want to personalize this Grouper Reuben recipe? Here are some tried and true tips for changing up this recipe.

    • Spicy - for a spicy kick, add chili pepper flakes to the fish.
    • Deluxe - top with fresh tomatoes or sliced onions for a delicious fresh taste.
    • Cole Slaw - Cole Slaw can be used in place of sauerkraut.

    If you love gourmet sandwich recipes, then you may also enjoy this Fried Pork Chop Sandwich recipe.

    vertical close up image of two grouper reuben sandwiches on top of each other placed on a wooden cutting board.

    Equipment

    You only need a few kitchen tools to make this beautiful sandwich.

    • casserole dish
    • mixing bowl
    • whisk or spoon
    • skillet

    Storage

    Store leftovers in the fridge for up to three days. Just keep the ingredients separate and only assemble the sandwiches when are you're ready to eat them.

    Tips

    Want to ensure this gourmet sandwich turns out fantastic? Here are my best tips!

    • You can make your own Thousand Island dressing for this recipe. It's the best. Although bottled will work well also.
    • I like to toast my rye bread lightly before assembling the sandwich for extra crunch and flavor.
    • When I'm feeling fancy, I like to use sauerkraut that has been slightly caramelized. If you have time, this is the way to go!
    close up image of two grouper reuben sandwiches on top of each other placed on a wooden cutting board.

    More Sandwich Recipes

    Do you like sandwich recipes? Here are some recipes you may also like to try

    • Provolone grilled cheese sandwich
    • Buffalo Chicken grilled cheese
    • Steak Sandwich

    FAQ

    Do you have questions about Grouper Reuben Sandwich? Here are some of the most commonly asked questions about this recipe.

    How do I reheat?

    For freshest taste reheat leftover grouper in the oven at 350 for 7 to 10 minutes. Or in a skillet.

    Can I use frozen grouper?

    Yes, but it's best to thaw it first. If you forget to thaw or are in a hurry add an additional 3 to 5 minutes to the cooking time.

    What is Grouper?

    Grouper, a fish native to the Atlantic and Gulf coasts of the United States, is a white flaky fish that can be used in many recipes. It's best known as a wintertime fish, back when fishermen would put them in ice to keep them fresh until they returned to port.

    Grouper Reuben Sandwich Recipe

    Ready to get cooking? Remember that you can print this recipe if you would like.

    Grouper Rueben Sandwich

    This Grouper Reuben Sandwich is a fun twist on a classic recipe. If you enjoy seafood then this is the recipe that you want to make ASAP!
    Print Recipe Pin Recipe
    Prep Time 10 mins
    Cook Time 9 mins
    Total Time 18 mins
    Course Main Course
    Cuisine American
    Servings 2 Sandwiches
    Calories 497 kcal

    Equipment

    • Mixing Bowls
    • whisk
    • casserole dish
    • Measuring cups and spoons
    • basting brush
    • mixing bowl
    • cutting board
    • butter knife
    • large skillet

    Ingredients
      

    • 2 4 oz grouper fillets or you can substitute your favorite white fish
    • pinch salt
    • ½ tablespoon olive oil

    Sauce Ingredients

    • ¼ cup mayo
    • 2 green onions, sliced
    • ⅛ cup red onion, diced
    • 1 tablespoon sweet pickle relish
    • 1 teaspoon horseradish
    • 1 tablespoon ketchup
    • ½ teaspoon salt
    • ¼ teaspoon paprika

    Reuben Ingredients

    • 4 slices rye bread
    • ½ cup sauerkraut
    • 2 slices swiss cheese
    • 2 tablespoons butter

    Instructions
     

    • Get out and measure your ingredients.
      Overhead photo of all the ingredients.
    • Place oven rack to about 4" away from the broiler. Preheat broiler to high (550ºF).
    • Place grouper filets in a greased casserole dish.
      Fish fillets placed into a greased casserole dish.
    • Prepare grouper by brushing it with a half tablespoon of oil. Evenly sprinkle salt over filets. Place casserole dish in oven.
      Brushing oil onto the fillets.
    • Cook grouper filets for 9 minutes or until fish is opaque and the edges begin to brown. DO NOT FLIP.
      Grouper cooked inside the oven for 9 minutes.

    Sauce Instructions

    • Combine all ingredients in a medium mixing bowl.
      All sauce ingredients added to a medium mixing bowl.
    • Depending on your preference, you could add more salt or horseradish to alter the flavor.
      All sauce ingredients added to a medium mixing bowl.
    • Stir until blended.
      Ingredients are mixed well.

    Assembly Instructions

    • At your workstation place your slices of bread.
      Two slices of bread placed onto a wooden cutting board.
    • Add butter.
      Butter spread onto the two slices of bread.
    • Add sauce.
      Sauce added to the slices.
    • Swiss cheese.
      Swiss cheese placed atop the sauce.
    • Sauerkraut.
      Sauerkraut placed atop the swiss cheese.
    • Grouper filet and remaining slice of bread. Close sandwich.
      Grouper fillet placed atop the Sauerkraut.
    • Generously butter the top and bottom of each sandwich. Heat a pan over medium heat. Add sandwiches.
      Butter is applied to the slices and the sandwich is placed inside a pan.
    • Grill on each side for about 2 minutes or until they are golden brown and cheese is melted.
      Sandwiches are flipped, the slice is now golden brown.
    • Serve immediately. Enjoy every bite!
      Closeup photo of grilled sandwiches placed on a wooden cutting board.

    Notes

    • Cook grouper filets until fish is opaque and the edges begin to brown. DO NOT
      FLIP.

    Nutrition

    Calories: 497kcalCarbohydrates: 40gProtein: 12gFat: 32gSaturated Fat: 8gPolyunsaturated Fat: 14gMonounsaturated Fat: 9gTrans Fat: 0.1gCholesterol: 30mgSodium: 1569mgPotassium: 288mgFiber: 5gSugar: 9gVitamin A: 465IUVitamin C: 10mgCalcium: 243mgIron: 3mg
    Keyword grouper reuben sandwich
    Tried this recipe?Let us know how it was!
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    Welcome!

    Ken and Karin

    We are the kitchen divas: Karin and my partner in life Ken.

    We have been attached at the heart and hip since the first day we met, and we love to create new dishes to keep things interesting. Variety is definitely the spice of life!

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