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Creamy Keto Tuna Casserole Recipe with Cauliflower Low-Carb Comfort

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A warm, creamy, and satisfying low-carb casserole combining roasted cauliflower and tuna in a rich cheese sauce, perfect for keto and low-carb diets.

Ingredients

Scale
  • 1 medium head cauliflower, cut into florets (about 4 cups)
  • 2 cans (5 oz / 140g each) canned tuna, drained
  • 4 oz (115g) cream cheese, softened
  • 1 cup shredded sharp cheddar cheese (about 4 oz / 115g)
  • 1/2 cup (120ml) heavy cream
  • 1 teaspoon garlic powder
  • 1 teaspoon Dijon mustard
  • 1/2 teaspoon onion powder
  • Salt and pepper to taste
  • 1 tablespoon olive oil or butter
  • 1 tablespoon fresh parsley, chopped (optional)

Instructions

  1. Preheat your oven to 400°F (200°C).
  2. Wash and cut the cauliflower into bite-sized florets (about 4 cups). Toss them with 1 tablespoon of olive oil or melted butter, 1/2 teaspoon salt, and a pinch of pepper. Spread evenly on a baking sheet.
  3. Roast the cauliflower in the oven for 20-25 minutes, stirring halfway through, until tender with slight golden edges.
  4. While the cauliflower roasts, whisk together softened cream cheese, heavy cream, garlic powder, onion powder, Dijon mustard, and a pinch of salt and pepper in a medium bowl until smooth.
  5. Fold in the shredded sharp cheddar cheese to create a thick, luscious sauce.
  6. Drain and flake the tuna with a fork to break up large chunks.
  7. In a large mixing bowl, combine the roasted cauliflower, flaked tuna, and creamy cheese sauce. Gently fold until evenly coated. Adjust seasoning with salt and pepper if needed.
  8. Transfer the mixture to an 8×8 inch (20×20 cm) casserole dish and spread evenly.
  9. Bake uncovered at 350°F (175°C) for 15-20 minutes until the cheese sauce is bubbly and golden on top.
  10. Remove from oven, sprinkle chopped fresh parsley over the top, and let cool for 5 minutes before serving.

Notes

Roasting the cauliflower prevents sogginess and adds flavor. Use softened cream cheese to avoid clumps. Drain tuna thoroughly to prevent watery sauce. Baking uncovered helps form a nice crust. If sauce is too thick before baking, add a splash of heavy cream; if too thin, add extra shredded cheddar.

Nutrition

Keywords: keto, low-carb, tuna casserole, cauliflower, creamy, comfort food, keto casserole, low-carb dinner

Find it online: https://tastypierecipes.com/creamy-keto-tuna-casserole-recipe-with-cauliflower-low-carb-comfort/