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Keto Tuna Casserole Recipe

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4.6 from 134 reviews

This Keto Tuna Casserole is a delicious low-carb twist on the classic comfort dish. Packed with protein-rich tuna, creamy heavy cream, and cheesy goodness, it uses cauliflower rice to keep it keto-friendly while still providing a satisfying, hearty meal. Perfect for those following a ketogenic diet or anyone looking for a tasty, gluten-free casserole.

Ingredients

Seafood and Vegetables

  • 2 cans (5 oz each) tuna, drained
  • 1 cup cauliflower rice (fresh or frozen)
  • 1/2 cup frozen peas (optional)
  • 1/4 cup diced onion
  • 2 cloves garlic, minced

Dairy and Seasonings

  • 1 cup heavy cream
  • 1 cup shredded cheddar cheese
  • Salt and pepper to taste

Others

  • Olive oil for cooking

Instructions

  1. Preheat Oven: Preheat your oven to 350°F (175°C) to prepare for baking the casserole later.
  2. Sauté Aromatics: In a skillet, heat olive oil over medium heat. Add the diced onion and minced garlic, cooking until they are softened and fragrant, about 3-5 minutes.
  3. Mix Ingredients: In a mixing bowl, combine the drained tuna, cauliflower rice, heavy cream, frozen peas (if using), salt, and pepper. Stir in half of the shredded cheddar cheese to create a creamy, flavorful mixture.
  4. Assemble Casserole: Pour the tuna mixture into a greased 9×9-inch baking dish, spreading evenly. Top with the remaining cheddar cheese for a golden, cheesy crust.
  5. Bake: Bake in the preheated oven for 25-30 minutes until the cheese is melted, bubbly, and lightly browned on top.
  6. Serve: Remove from oven and let cool slightly before serving to allow the casserole to set and flavors to meld.

Notes

  • The frozen peas are optional and can be omitted to reduce carbs further.
  • Cauliflower rice can be fresh or frozen depending on convenience.
  • You can substitute cheddar cheese with other keto-friendly cheeses like mozzarella or Monterey Jack.
  • For added flavor, consider sprinkling some paprika or dried herbs before baking.
  • Leftovers store well in the refrigerator for up to 3 days and can be reheated in the oven or microwave.

Find it online: https://alinacooks.com/keto-tuna-casserole-recipe/