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–+ servings
One Pot Keto Tuna Casserole

One Pot Keto Tuna Casserole: Creamy Comfort in Minutes

This One Pot Keto Tuna Casserole is a nutritious and satisfying dish perfect for busy weeknights. Ready in just 30 minutes!
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Prep Time 10 minutes
Cook Time 25 minutes
Cooling Time 5 minutes
Total Time 30 minutes
Servings: 4 servings
Course: Dinner
Cuisine: American
Calories: 320
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 2 cans Tuna well-drained
  • 1 cup Bell Pepper diced
  • 1 cup Onion chopped
  • 1/2 cup Avocado Oil Mayonnaise
  • 1 cup Mozzarella shredded
  • 1/2 cup Cottage Cheese or Ricotta
  • 1 teaspoon Red Pepper Flakes optional
  • 1 teaspoon Garlic Salt
For Variations
  • 2 cups Chicken or Salmon optional protein
  • 1 cup Additional Vegetables like spinach or mushrooms
  • 1/2 cup Crispy Breadcrumbs or Crushed Pork Rinds for topping

Equipment

  • 5x9-inch baking pan
  • large mixing bowl
  • Spatula

Method
 

Step‑by‑Step Instructions
  1. Preheat your oven to 350°F (175°C) and coat a 5x9-inch baking pan with cooking spray.
  2. In a large mixing bowl, combine the drained tuna, diced bell pepper, and chopped onion. Add the mayonnaise, mozzarella, and cottage cheese, then mix in red pepper flakes and garlic salt.
  3. Pour the mixture into the prepared baking pan, spreading it out evenly.
  4. Bake for 20-25 minutes until bubbling on the edges and the cheese is golden brown.
  5. Remove from the oven and let cool for 5 minutes before serving.

Nutrition

Serving: 1servingCalories: 320kcalCarbohydrates: 5gProtein: 25gFat: 22gSaturated Fat: 6gPolyunsaturated Fat: 2gMonounsaturated Fat: 10gCholesterol: 70mgSodium: 800mgPotassium: 350mgFiber: 2gSugar: 1gVitamin A: 500IUVitamin C: 30mgCalcium: 250mgIron: 1.5mg

Notes

Ensure tuna is well-drained and consider adding a splash of heavy cream for extra creaminess.

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