Creamy Cheddar Tuna Casserole

Ahna Fulmer
by Ahna Fulmer
12 servings
50 min

This creamy cheddar tuna casserole recipe is a delicious one-dish dinner that can be enjoyed right away or frozen for later!

We love tuna around these parts, and the secret to this casserole is using a cheese that you love.

Many different kinds of cheese would work in this casserole, but my favorite is to do half sharp cheddar and half smoked sharp cheddar.

The veggies help to create that all-in-one dish for dinner we all enjoy.

Bon appetit!

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My little helper was in charge of grating the cheese.

Not too many chefs out there as cute as this one!

See that fork that slipped in there? The little chef had to taste it first.

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Creamy Cheddar Tuna Casserole
Recipe details
  • 12  servings
  • Prep time: 20 Minutes Cook time: 30 Minutes Total time: 50 min
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  • 24 oz Pasta* *For GF use chickpea pasta
  • 1/4 c butter
  • 1/4 c white whole wheat flour* *For GF use a GF baking flour blend
  • 4 c 1% milk* *For DF use oat milk
  • 1 tsp salt
  • 2 tbsp honey mustard
  • 4 c sharp cheddar cheese, shredded* *Remove for DF
  • 24 oz tuna, drained
  • 2 tbsp apple cider vinegar
  • 2 tbsp sugar
  • 1/4 c mayonaisse
  • 2 lg carrots, diced
  • 1 onion, diced

Cook the pasta according to directions. Drain and set aside.
Mix tuna, apple cider vinegar, sugar, and mayo, and add to the cooked pasta and mix.
In a medium saucepan over medium heat, melt the butter. Add the flour and cook for 1 minute stirring constantly.
Add the carrots, onion, milk, salt, and honey mustard. Cook until mixture boils and thickens, stirring constantly.
Stir in 3 c cheddar cheese until melted.
Pour into the pasta/tuna mixture and stir.
Pour into greased 9×13 baking dish and sprinkle the remaining 1 c cheddar cheese on top.
Bake 350F for 30-35 minutes or until cheese is browned and bubbling on top.
Freezing Instructions
Freeze unbaked in the 9×13 baking dish. Thaw overnight and bake according to directions.
  • Macros Per Serving: 49g Net Carbs, 23g Fat, 39g Protein
Ahna Fulmer
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