Keto Tuna Casserole (with Cabbage 'Noodles')
A cozy casserole made from simple pantry staples, this creamy tuna bake swaps cabbage for noodles to keep things naturally low in carbs and high in protein. Easy to prep and totally comforting, it’s a sleeper hit that the whole family will enjoy.
Ingredients
- 2 tablespoons butter, or bacon fat
- 1½ lbs green cabbage, thickly sliced (about ½-inch wide)
- 3 ribs celery, diced
- ½ cup frozen peas
- 2 cloves garlic, minced
- ½ cup full-fat cream cheese
- ½ cup full-fat mayonnaise
- 1 tablespoon dijon mustard (or 1 teaspoon dry mustard powder)
- 2 teaspoons dried dill
- 1 teaspoon celery seed
- salt + pepper, to taste
- 3 cans albacore tuna, drained
- 1 cup shredded cheese, like cheddar, mozzarella, or a blend
- ½ cup parmesan, grated
Instructions
- Preheat the oven to 350°F.
- In a large skillet, melt the butter over medium-high heat. Add the cabbage and celery. Saute until tender and softened, about 10 minutes.
- Add the frozen peas and garlic. Cook for 1 minute, until fragrant.
- Add the cream cheese and cook until melted, stirring often.
- Remove the pan from the heat. Add the mayonnaise, dijon mustard, dried dill, and celery seed. Stir until well combined. Season with salt and pepper.
- Stir in the tuna and half the cheese until everything is well distributed. Transfer to an oven-safe baking dish. Sprinkle remaining cheese over top.
- Bake for 25-30 minutes, until hot and the cheese has melted. Broil for 3-5 minutes, until golden and bubbly.
Notes
Storing: Store covered in the fridge for up to 3 days, or in the freezer for up to 3 months. To defrost frozen casserole, leave it to thaw in the fridge overnight, about 12-18 hours.
Reheating: This casserole can be reheated in the microwave or the oven. To reheat in the oven, cover the casserole with foil and bake at 350°F for 20-40 minutes, until hot and warmed through.
Make it ahead! To make this casserole in advance so it’s ready to bake the next day, prepare the casserole up to the point that it’s topped with cheese and ready to bake. Allow the dish to cool, then cover and refrigerate overnight until just before dinnertime. Bake at 350°F for 35-40 minutes, until hot and the cheese has melted. Broil for 3-5 minutes, until golden and bubbly.
Nutrition Info: Per serving (based on 6 servings), 715 Calories; 49g Protein; 57g Fat; 8g Net Carbs.