Tuna Casserole

This delicious and filling low carb and keto tuna casserole has no noodles, but it does have lots of flavor! Plus it’s so easy to make.

Prep Time 15 min | Cook Time 15 min | Dinner, main course | Keto | Servings: 2 | Calories: 465 kcal | Carbs: per serving 2g

Author: Wild Riot Collective


- 2 (142g/ 5oz) cans tuna in water, drained

- 1/3 cup avocado oil mayonnaise

- 1 tablespoon Dijon mustard

- 1/2 cup shredded gruyere, divided

- 1/4 cup chopped red onion

- 1/4 teaspoon sea salt

- 1/4 teaspoon black pepper

- 1/4 teaspoon cayenne pepper

- 1/4 cup chopped parsley for garnish


Preheat oven to 400 degrees F.

Mix together the tuna, mayonnaise, mustard, 1/4 cup cheese, onion, salt, pepper and cayenne.

Transfer the mixture to a small, 1-quart casserole dish.

Sprinkle 1/4 cup shredded cheese on top.

Bake until hot, about 15 minutes.

Sprinkle with parsley and serve immediately, with cut-up veggies.

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