New England Seafood Casserole Recipe: The Best Recipe!

If you love a hearty meal and are a fan of seafood, then you will love this New England Seafood Casserole Recipe! It is stuffed full of delicious ingredients that seafood lovers will be unable to stop themselves for going for seconds.

I love an easy recipe, (you can see my vegetable tater tot casserole if that is your thing) especially an easy seafood casserole recipe. We are a pescatarian household, so, hearty meals that will have leftovers, yes please!

Ingredients for new England seafood casserole recipe:

Sea scallops
Parmesan cheese
Salt/ black pepper
Thyme
Butter, unsalted 
Large shrimp
Dry sherry
White fish, you can use a firm white fish like cod or you can use flounder
Shallots, if you do not have, then a medium onion works fine
Garlic cloves
Ritz crackers (I use a gluten free equivalent)
Dijon mustard
Milk
All purpose flour (I use King Arthur Measure for Measure gluten free flour)
Mushrooms

How to make this New England seafood casserole Recipe:

Place Oil or unsalted butter into a pot: if you are using butter, use 1-2 tablespoon and place the chopped shallot into the pot until they are golden brown. Then mince the garlic and place in the pot for 2-3 minutes. Proceed to then add the mushrooms and allow them to brown for 4 or 5 minutes.
Add the Sherry: and allow it to boil down. Once it has, add the mustard and flour.
Once you have added the flour: Make sure the flour covers everything in the pot. It is going to thicken the sauce.
Add the milk: Add the milk to the pot and let it sit for 3-4 minutes. You can stir it in this time. It will begin to thicken.
Add the seafood: Add the seafood to the pot and allow it to cook for a few minutes. The shrimp will start to turn pink, and the filets of fish will begin to break down.  Season your dish and taste it here. Add as much salt or pepper as you like.
Pour into your baking dish: Pour the filling into your baking dish and then top it with the cracker. For this, melt 1-2 tablespoons of butter and mix it with the cracker crumbs. If you want, you can add the parmesan at this point, or, once it comes out of the oven.
Bake: Place your baking dish into a preheated oven and bake for 25-30 minutes at 400°F. When it comes out of the oven, allow it to sit for 5-10 minutes. Cover with parmesan (if you didn’t put it on while it was going into the oven), and fresh parsley. 

Substitutions for this recipe:

There are several seafood components to this dish and you can sub in different types of fish:

Tail meat of lobster tails, lobster meat, crab meat, dry white wine can be substituted for dry sherry, fresh garlic is always the best way to go but if you cannot find any, then you can use garlic powder

You can use cream instead of milk if you want a richer gravy.

The type of seafood you use is not overly specific, it can be up to your tastebuds. We love shrimp and scallops, so we pair that with white fish in our household, but, all options are equally delicious!

Storing New England Seafood Casserole Leftovers

To store a casserole properly, follow these guidelines:

1. Allow the casserole to cool: Before storing, allow the casserole to cool down to room temperature. This helps prevent condensation from forming inside the storage container, which can lead to sogginess or spoilage.
2. Choose an appropriate container: Select a container that is suitable for storing the casserole. Ideally, it should be airtight to keep the casserole fresh and prevent any odors from transferring to other foods in the refrigerator.
3. Portion into individual servings (optional): If you anticipate only needing a portion of the casserole at a time, consider dividing it into individual servings before storing. This way, you can easily take out and reheat only what you need, minimizing waste.
4. Cover the casserole: If the casserole is still in the original baking dish, you can cover it tightly with plastic wrap or aluminum foil. Ensure that the covering completely seals the dish to prevent air and moisture from entering.
5. Label and date: Use a marker or label to indicate the contents and date of storage. This helps you keep track of freshness and easily identify the casserole later.
6. Store in the refrigerator: Place the covered casserole in the refrigerator. Make sure it is stored away from raw meats or other foods that could potentially contaminate it.
7. Use within recommended timeframe: Consume the casserole within 3-4 days of storage to ensure its freshness and quality. Discard any leftovers beyond this time to avoid the risk of foodborne illness.

Why should you make this recipe?

This is such a great recipe! The creamy sauce mixed with the fresh seafood is absolutely delicious and makes this one of the best main courses you are ever going to have as a seafood lover. It is a delicious casserole with a creamy base that will leave your taste buds dancing. I promise. The crunchy top mixed with the melted butter is so good that you will wish you used more of it and be wondering how you can add to this other dishes in your repertoire. 

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Laura 

Check out other Fish Recipes