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BLACKENED MAHI REUBEN

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Jenna
BLACKENED MAHI REUBENBOLD • PROTEIN-PACKED • BETTER-FOR-YOU CLASSIC
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BLACKENED MAHI REUBEN
BOLD • PROTEIN-PACKED • BETTER-FOR-YOU CLASSIC

Recipe by JennaCourse: Uncategorized
Servings

4

servings
Prep time

10

minutes
Cooking time

15

minutes
Calories

420

kcal

A lighter, protein-forward twist on a classic Reuben. Blackened mahi mahi replaces corned beef for a bold, satisfying sandwich that still feels fresh, balanced, and indulgent without being heavy.

✨ About This Recipe
This is one of those meals that feels indulgent but still fits into a lean, high-protein lifestyle. The blackened mahi brings big flavor, the sauerkraut adds that classic tang, and the marbled rye makes it feel like a real Reuben — just cleaner and lighter. It’s perfect for when you want something hearty without feeling weighed down.

⚡ Health Breakdown (Estimated)
Per Serving (1 sandwich):
Calories: ~420
Protein: 35–40g
Carbs: 30–35g
Fat: 14–18g
Sodium: Moderate–High

Highlights:
✔ High-protein seafood swap
✔ Bold flavor, no frying
✔ More filling, less heavy
✔ Easy to lighten with sauce or cheese swaps

Ingredients

  • Sandwich Base
    1½–2 lbs mahi mahi (Costco portions work perfectly)
    Blackening seasoning (Thrive Market Bold & Blackened or homemade)
    Olive oil or avocado oil spray
    8 slices marbled rye bread
    1½–2 cups sauerkraut, drained and warmed
    4 slices provolone or other mild white cheese (optional)

    Dressing – Thousand Island
    Thousand Island dressing (or homemade, see below)


    Optional Ingredients:

    Homemade Blackening Seasoning
    1 tbsp smoked paprika
    1 tsp paprika
    1 tsp garlic powder
    1 tsp onion powder
    ¾ tsp salt (adjust to taste)
    ½ tsp black pepper
    ½ tsp dried oregano
    ½ tsp dried thyme
    ¼–½ tsp cayenne pepper (depending on heat tolerance)

    Lighter “Thousand Island”–Style Sauce
    ½ cup nonfat or 2% Greek yogurt
    2 tbsp light mayo (can reduce to 1 tbsp for extra light)
    2 tbsp ketchup
    1 tbsp finely chopped pickles or relish
    1 tsp yellow or Dijon mustard
    1 tsp white vinegar or pickle juice
    Salt & pepper to taste
    Optional: pinch of paprika or garlic powder

Directions

  • Prep the Fish
    Thaw mahi mahi completely and pat dry. Generously season both sides with blackening seasoning.
  • Cook the Mahi
    Heat a skillet over medium-high heat with a small amount of oil. Cook mahi 3–4 minutes per side until blackened, flaky, and cooked through. Remove from pan and set aside.
  • Warm the Sauerkraut
    In the same skillet (or a small saucepan), gently warm sauerkraut until heated through. Set aside.
  • Toast the Bread
    Lightly toast marbled rye slices until golden. You can butter the outside if doing a grilled-cheese-style finish.
  • Assemble the Sandwiches
    Layer bread with mahi mahi, warm sauerkraut, cheese (if using), and Thousand Island dressing.
  • Optional Grilled Finish
    For a melty, classic Reuben feel: return assembled sandwiches to the skillet and cook like a grilled cheese until bread is crisp and cheese is melted.
  • Serve Hot
    Slice in half and serve immediately.

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