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–+ servings

Keto Tuna Casserole with Cabbage and Parmesan

A creamy and cheesy low-carb tuna casserolefeaturing cabbage, Parmesan, and a zesty dill-flavored sauce, perfect for ketodieters or anyone seeking a healthier comfort food option.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Course Main Course
Cuisine American
Servings 6
Calories 500 kcal

Ingredients
  

For the Casserole:

  • 2 tablespoons olive oil
  • 2 tablespoons butter
  • 1 medium head green cabbage about 1½ lbs, cut into large shreds
  • 1 cup chopped onion
  • 3 ribs celery chopped
  • 2 cloves garlic minced
  • Sea salt and black pepper to taste

For the Seasoning and Sauce:

  • 2 teaspoons dried dill or 2 tablespoons fresh dill
  • 2 teaspoons dry mustard powder
  • 1 tablespoon lemon zest
  • Juice of 1 lemon
  • 1½ cups heavy cream
  • 1¼ cups grated Parmesan cheese divided

For the Add-Ins:

  • 3 5 oz cans albacore tuna, drained
  • ½ cup frozen peas

Instructions
 

  • Preheat the Oven : Preheat your oven to 375°F (190°C) and grease a 9x13-inch casserole dish or a similar-sized baking dish. Set aside.
  • Cook the Cabbage and Vegetables : In a large skillet, heat the olive oil and butter over medium heat. Add the cabbage, onion, and celery to the skillet. Sauté for 8-10 minutes, or until the cabbage is softened and slightly caramelized. Stir in the minced garlic and cook for another 1-2 minutes. Season with sea salt and black pepper to taste.
  • Prepare the Sauce : Add the dill, mustard powder, lemon zest, and lemon juice to the skillet. Stir well to combine. Pour in the heavy cream and 1 cup of the grated Parmesan cheese. Stir continuously until the cheese is melted and the sauce is smooth and creamy.
  • Combine the Ingredients : Gently fold in the drained tuna and frozen peas. Stir until evenly distributed. Transfer the mixture to the prepared casserole dish, spreading it out evenly.
  • Top with Cheese : Sprinkle the remaining ¼ cup of grated Parmesan cheese evenly over the top of the casserole.
  • Bake the Casserole : Place the casserole in the preheated oven and bake for 20-25 minutes, or until bubbly and golden brown on top.
  • Serve : Remove from the oven and let the casserole rest for 5 minutes before serving. Garnish with additional fresh dill if desired, and enjoy!

Nutrition

Calories: 500kcal
Keyword Keto tuna casserole
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