Rich with a savory Gruyere and mustard sauce, its the perfect leftover turkey recipe.

Simply Recipes / Ciara Kehoe

Every year we start our Thanksgiving planning with the best of intentions.

“Last year was over the top.

Serving turkey noodle casserole from a baking dish

Simply Recipes / Ciara Kehoe

Could we hey put the brakes on with the side dishes this time?”

And every year, we cook way more food than our extended family could possibly eat in one sitting.

I blame my father.

Turkey noodle casserole served with green salad

Simply Recipes / Ciara Kehoe

And that’s just the starches!

But is this a problem?

Having too much turkey?

Cooking leeks in a pot for leftover turkey recipe

Simply Recipes / Ciara Kehoe

Uh, let me think about it.

No, it is not a problem.

It just means more opportunities for creative uses of turkey leftovers, like this luscious turkey noodle casserole.

Cooked leeks in a pot

Simply Recipes / Ciara Kehoe

It’s creamy, it’s crunchy, it’s sort of fancy for a casserole.

Never mind that though, it tastes great!

A perfect home for the leftover turkey that lost out to too many sides.

how to make sauce for tuna noodle casserole

Simply Recipes / Ciara Kehoe

you’re free to also freeze the casserole before you put it in the oven.

Then, thaw in the fridge overnight and bake.

you’ve got the option to also go directly from the freezer to the oven.

Cream the sauce for a leftover turkey casserole

Simply Recipes / Ciara Kehoe

It just takes about twice as long to heat it up.

Just be sure to wrap your casserole a couple of times with heavy-duty foil before freezing.

Be nice to your future self and label and date your casserole too!

cheesy tuna noodle casserole

Simply Recipes / Ciara Kehoe

Add 2 tablespoons of salt to the water (1 tablespoon for every 2 quarts of water).

Heat 4 quarts of water on high until it comes to a boil.

Add the shallots and celery, and cook until softened, about 5 minutes.

leftover turkey in turkey noodle casserole

Simply Recipes / Ciara Kehoe

Stir in the flour and cook over low heat, stirring, for about 3 minutes.

The pasta should be a bit firmer than al dente.

While the pasta is cooking, continue on with the recipe.

what type of pasta for tuna noodle casserole

Simply Recipes / Ciara Kehoe

Then, stir in the milk, cream, and stock.

Bring to a simmer and cook over medium-low heat, stirring frequently, for about 5 to 8 minutes.

By the time the sauce is done, the pasta will be ready.

how to prepare casserole dish for tuna noodle casserole

Simply Recipes / Ciara Kehoe

Drain and rinse the pasta with cold water to stop the cooking.

Add the grated cheese and mustard to the pot.

Stir until the cheese is melted.

panko best topping for tuna noodle casserole

Simply Recipes / Ciara Kehoe

Add the chopped cooked turkey to the pot.

Add freshly ground black pepper.

Now it’s time to add the cooked pasta to the pot.

If the noodles have stuck together, rinse them in the colander with a little water to separate them.

Add the noodles to the pot with the turkey.

Stir in the lemon juice and adjust the seasonings to your taste.

Transfer the mixture to a buttered 3-quart casserole dish.

Sprinkle the top with panko and drizzle 1 tablespoon of melted butter over the top.

If you’ve got the option to wait, let the casserole cool a bit before serving.

Garnish with chopped parsley, if using.