Name: Best Crab Casserole Recipe
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 1 cup shredded Swiss cheese (freshly shredded for best melt); 1/2 large onion (finely diced); 1/4 cup sour cream; 4 oz cream cheese (softened at room temperature); 1 lb imitation crab meat (or real crab for a richer flavor); 2 tsp garlic powder; 1/4 cup mayonnaise (I prefer Hellmann’s for its creamy texture); 1 tsp dried parsley; Additional shredded Swiss cheese (for extra cheesy topping)

Jump to Recipe· 4.1 from 82 reviews

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If you’re on the hunt for a rich, comforting seafood dish that never fails to impress, you’ve got to try the Best Crab Casserole Recipe. Creamy, cheesy, and bursting with the delicate flavor of crab, this casserole brings together simple ingredients in a way that creates pure magic. It’s the kind of recipe that feels like a warm hug on a plate, perfect for cozy dinners or special gatherings where everyone’s asking for seconds. Once you make this, it’s going to earn a permanent spot in your recipe collection.

Ingredients You’ll Need

A white baking dish filled with a creamy, cheesy casserole that has a thick top layer of melted golden-yellow cheese, browned in spots, and sprinkled with finely chopped green herbs for texture and color contrast. The dish’s surface has a slightly bubbly and rich texture, and underneath the cheese is a soft, creamy white layer that looks smooth and moist. A silver spoon is scooping some of the creamy layer from one corner, showing a thick, rich consistency. The dish is set on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

Don’t be fooled by the simplicity of these ingredients—they each play a crucial role in building the luscious taste, creamy texture, and inviting golden color of this crab casserole. From the tangy sour cream to the rich Swiss cheese, every element works in harmony to create a dish that’s bursting with flavor.

Shredded Swiss cheese (1 cup): Freshly shredded gives the best melt and a nutty, gooey texture.
Onion, finely diced (1/2 large): Adds subtle sweetness and depth to the crab mixture.
Sour cream (1/4 cup): Brings tang and creaminess to balance the richness.
Cream cheese (4 oz, softened): Makes the casserole gorgeously smooth and indulgent.
Imitation crab meat (1 lb): A budget-friendly option with great flavor; real crab is perfect for an upscale twist.
Garlic powder (2 tsp): Infuses a mild, savory note without overpowering the crab.
Mayonnaise (1/4 cup): I prefer Hellmann’s for its creamy texture, which keeps the casserole lush and moist.
Dried parsley (1 tsp): Adds color and a hint of fresh herbal brightness.

How to Make Best Crab Casserole Recipe

Step 1: Preheat the Oven

Start by setting your oven to 350 degrees Fahrenheit. This is essential so that when your crab mixture is ready, the oven is hot and prepared to give you that perfectly melted, bubbly, golden-top you dream of.

Step 2: Prepare the Crab Mixture

In a large bowl, mix the imitation crab meat, diced onion, mayonnaise, sour cream, softened cream cheese, shredded Swiss cheese, garlic powder, and dried parsley. Stir them together thoroughly until you have a creamy, well-blended mixture where every bite will be packed with flavor and texture.

Step 3: Assemble the Casserole

Transfer your luscious crab mixture into your casserole dish. Use a spatula to spread it evenly, which ensures consistent cooking and a smooth, appealing top. This even layer is key for that satisfying bite every time.

Step 4: Optional Extra Cheese Layer

If you’re a cheese lover like me, sprinkle an extra handful of shredded Swiss cheese on top. It’s optional, but trust me, that extra cheesy layer turns this dish into pure comfort food heaven.

Step 5: Bake the Casserole

Pop the casserole into your preheated oven and bake for about 30 minutes. You want to see the cheese melted, bubbly, and just starting to turn golden. When it’s ready, take it out and let it cool for a few minutes—this sets everything perfectly and lets those flavors settle in.

How to Serve Best Crab Casserole Recipe

The dish is a creamy, cheesy mixture served on a white plate with ornate edges, placed on a white marbled surface. It has one main layer consisting of shredded white meat mixed with a thick, smooth white sauce. The top is covered with melted orange-yellow cheese sprinkled with black pepper and small bits of herbs. There are a few small green parsley leaves placed on top for garnish. The texture looks soft and moist with a golden, slightly browned cheese topping. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

A light sprinkle of fresh chopped parsley or a dash of paprika adds color and a subtle flavor contrast. A few lemon wedges on the side bring a bright, zesty pop when squeezed over, which cuts through the richness beautifully and refreshes the palate.

Side Dishes

This casserole pairs wonderfully with crisp green salads, roasted vegetables, or buttery garlic bread. For a heartier meal, steamed asparagus or a simple coleslaw complement the creamy crab blend perfectly, rounding out your plate with fresh textures and flavors.

Creative Ways to Present

For a special occasion, serve the Best Crab Casserole Recipe in individual ramekins for an elegant touch. You can also scoop it onto toasted crostini as a decadent appetizer or stuff mushrooms with it for bite-sized treats that will wow your guests with ease.

Make Ahead and Storage

Storing Leftovers

Once cooled, cover your casserole tightly with plastic wrap or foil and store it in the refrigerator. It will keep well for up to three days, making it a fantastic option for next-day lunches or quick dinners.

Freezing

You can freeze the casserole before baking by assembling it in a freezer-safe dish and wrapping it tightly. It will stay good for up to two months. When you’re ready to enjoy, thaw it overnight in the fridge before baking as directed for fresh-from-the-oven flavor.

Reheating

Reheat leftovers in a 350-degree oven until warmed through and bubbly—usually about 15 to 20 minutes. This method helps maintain that irresistible cheesy top and creamy texture, unlike microwaving which can sometimes dry it out.

FAQs

Can I use real crab instead of imitation crab meat?

Absolutely! Real crab will give the casserole a richer and more authentic seafood flavor. Just make sure it’s cooked and picked clean of shells before using.

Is there a way to make this casserole gluten-free?

Yes! This recipe is naturally gluten-free as long as your mayonnaise and other packaged ingredients do not contain gluten. Always double-check labels to be sure.

Can I add other seafood to this casserole?

Definitely. Shrimp or scallops can be chopped and mixed in for a seafood medley. Just adjust cooking times if your additions need more or less time to cook through.

What can I substitute for Swiss cheese?

Mozzarella or Monterey Jack work well as alternatives, providing a mild, gooey melt that complements the crab beautifully without overpowering it.

How can I make the casserole less rich?

Try replacing the sour cream and cream cheese with Greek yogurt for a lighter but still creamy texture. You can also reduce the amount of cheese, though that may impact the gooey factor.

Final Thoughts

The Best Crab Casserole Recipe is truly a treasure in the kitchen—simple ingredients transform into a show-stopping dish that tastes like it took hours to master. Whether you’re serving family, friends, or just treating yourself, this casserole delivers big on comfort and flavor. I can’t wait for you to make it, savor it, and share it all around. Trust me, once you try this, it’s going to become someone’s new favorite too!

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