Absolutely. Just make sure to check the label — tuna packed in water or olive oil is ideal. Avoid versions with added sauces or seasonings that might contain sugar or hidden carbs.

What can I use instead of noodles in keto casseroles?

Ditch the pasta and use low-carb alternatives like: Zucchini noodles (zoodles) Cauliflower florets Shredded cabbage Spaghetti squash These mimic the texture of noodles while keeping carbs low.

How do I thicken a keto casserole without flour?

Use keto-friendly binders like: Cream cheese Shredded cheese Heavy cream Eggs Xanthan gum (a pinch goes a long way) These ingredients provide structure and creaminess without the carbs.

Can I prep keto tuna casserole in advance?

Yes — and it’s highly recommended. You can: Assemble it ahead of time and store it unbaked in the fridge for up to 24 hours Freeze it (either baked or unbaked) for long-term storage Just thaw before baking to ensure even cooking.

Keto Tuna Casserole: The Best 5-Ingredient Low-Carb Bake

Description

This creamy, cheesy keto tuna casserole is low-carb, easy to make, and perfect for busy weeknights. Made with just 5 simple ingredients!

Ingredients

Scale

2 cans tuna (drained)
1.5 cups shredded cheddar cheese
½ cup cream cheese or sour cream
2 cups zucchini noodles or cauliflower
1 large egg
Salt, pepper, garlic powder (to taste)

Instructions

Preheat oven to 375°F (190°C).
In a large bowl, combine drained tuna, cream cheese or sour cream, beaten egg, shredded cheese (reserve half for topping), and chopped veggies (zoodles or cauliflower).
Season with salt, pepper, garlic powder, and any other preferred spices. Mix until creamy and well combined.
Transfer the mixture to a greased 9×9 casserole dish and spread evenly.
Sprinkle the remaining cheese on top.
Bake uncovered for 20–25 minutes until bubbly and golden on top.
Let rest 5–10 minutes before serving.

Prep Time: 10 minutes
Cook Time: 25 minutes
Category: Dinner
Cuisine: American

Keywords: keto tuna casserole, low carb tuna bake, easy keto dinner, creamy tuna casserole