If you’re craving a dish that combines comforting creaminess with a bright, savory seafood flavor, you’re going to adore this Crab Casserole with Swiss and Cheddar Cheese Recipe. It’s a wonderful blend of tender crab meat, sharp cheeses, and just the right amount of spices baked into a bubbly, golden casserole that makes every bite pure joy. Whether you’re cooking for family or friends, this recipe delivers a crowd-pleasing result that feels both homey and a bit indulgent, perfect for any occasion.

Ingredients You’ll Need
What’s great about this Crab Casserole with Swiss and Cheddar Cheese Recipe is how straightforward and approachable the ingredients are. Each one plays a crucial role, from adding creamy texture to bringing vibrant flavor and color that make the casserole irresistible.
- Swiss cheese, 1 cup shredded: Brings a smooth, nutty flavor that melts beautifully throughout the casserole.
- Cream cheese, 4 ounces softened: Adds a rich and velvety base that keeps the dish creamy and luscious.
- Mayonnaise, â…“ cup: Enhances moisture and tang, creating harmonious balance with the cream cheese.
- Sour cream, ¼ cup: Injects subtle tang and creaminess to elevate the overall texture.
- Onion, 1 tablespoon minced: Offers a mild aromatic kick that complements the crab perfectly.
- Green pepper, 1 tablespoon minced: Adds a fresh, crisp flavor and lovely color contrast.
- Green onions, 3 chopped: Give a gentle oniony brightness that livens up each mouthful.
- Garlic powder, ½ teaspoon: Infuses a warm savory undertone essential for sparkle in the flavor.
- Mustard powder, ½ teaspoon: Contributes a subtle sharpness and depth without overpowering.
- Old Bay seasoning, ½ teaspoon: The classic seasoning that perfectly accents seafood dishes with a blend of spices.
- Imitation crab meat, 14 ounces flake style: The star seafood ingredient—tender, flaky, and full of ocean flavors.
- Cheddar cheese, ½ cup shredded: Provides a rich, sharp contrast to the Swiss, melting into gooey pockets of flavor.
- Chives, 1 tablespoon finely chopped: Adds a fresh, mild onion note and beautiful green flecks on top.
- Steamed rice or pasta: To serve—offering a comforting base that soaks up every creamy, cheesy bite.
How to Make Crab Casserole with Swiss and Cheddar Cheese Recipe
Step 1: Preheat and Prepare Your Dish
Start by heating your oven to 350°F (175°C). During this time, lightly grease a casserole dish, which ensures your cheesy concoction won’t stick and will come out perfectly baked with a golden top.
Step 2: Create the Creamy Base
In a large bowl, mix together the softened cream cheese, mayonnaise, and sour cream. Stir until the texture is completely smooth and combined—this mixture becomes the rich, luscious foundation for your casserole.
Step 3: Add the Veggie and Spice Flavorings
Next, incorporate the minced onion, green pepper, chopped green onions, garlic powder, mustard powder, and Old Bay seasoning. These ingredients bring layers of fragrant flavor that brighten and deepen the dish’s overall profile.
Step 4: Fold in the Crab and Cheeses
Gently fold in the flaked imitation crab, Swiss cheese, cheddar cheese, and chives. Be careful not to overmix here; you want the crab pieces to stay flaky and the cheese to distribute nicely throughout the mixture.
Step 5: Bake to Perfection
Pour the creamy, cheesy crab mixture into your prepared casserole dish. Bake uncovered for 25 to 30 minutes until it’s bubbling around the edges and develops a beautifully golden, slightly crisp top—a sure sign it’s ready to enjoy.
Step 6: Serve with Your Favorite Base
Once out of the oven, serve the casserole warm over lightly steamed rice or your choice of pasta. This not only stretches the meal but creates a wonderful, hearty experience where the creamy casserole melds with the base beautifully.
How to Serve Crab Casserole with Swiss and Cheddar Cheese Recipe

Garnishes
Brighten your Crab Casserole with Swiss and Cheddar Cheese Recipe by sprinkling fresh chopped parsley or more chives on top right before serving. A squeeze of lemon juice on the side can also add a refreshing zing that cuts through the richness perfectly.
Side Dishes
Pair this casserole with simple, crisp sides like a fresh green salad or steamed vegetables such as asparagus or broccoli. These balance the richness and add a lovely lightness and color contrast on the plate.
Creative Ways to Present
For an elegant touch, serve individual portions in ramekins with a sprinkle of extra cheddar melted on top under a broiler just before serving. Alternatively, offer the casserole as a dip alongside crusty bread or crackers for a fun appetizer twist that guests will rave about.
Make Ahead and Storage
Storing Leftovers
Once cooled to room temperature, cover the casserole tightly with plastic wrap or transfer leftovers to an airtight container. Stored properly, it will keep well in the refrigerator for up to 3 days, allowing the flavors to meld even more as it rests.
Freezing
This Crab Casserole with Swiss and Cheddar Cheese Recipe freezes wonderfully. Freeze in an airtight container or wrapped well in foil for up to 2 months. Thaw overnight in the refrigerator before reheating for best texture and flavor.
Reheating
Reheat leftovers gently in an oven set to 325°F (160°C) until heated through, about 15 to 20 minutes. Cover with foil during reheating to maintain moisture and prevent the top from over-browning. You can also reheat individual portions in the microwave, but watch carefully to avoid drying out.
FAQs
Can I use real crab meat instead of imitation crab?
Absolutely! Real crab meat will elevate the flavor and texture, making the casserole even more decadent. Just be sure to use fresh or well-drained cooked crab meat to keep the casserole from becoming too watery.
Is this recipe suitable for a gluten-free diet?
The casserole itself is naturally gluten-free as long as the imitation crab meat and seasonings you use don’t contain gluten. Always double-check labels to be safe, especially with processed ingredients.
Can I prepare this casserole ahead of time?
Yes! You can assemble the entire casserole a day ahead and keep it covered in the refrigerator. When you’re ready to eat, simply bake it as directed, adding a few extra minutes to the cooking time if baking from cold.
What is the best way to keep this casserole from drying out?
Ensuring your base has enough creaminess from cream cheese, mayonnaise, and sour cream helps retain moisture. Covering loosely with foil while baking for the first 20 minutes can also keep the casserole moist, removing it at the end to brown the top.
Can I make this recipe dairy-free or vegan?
This recipe relies heavily on dairy for its signature creamy texture and flavor, so it’s a bit tricky to veganize without changing it significantly. However, experimenting with dairy-free cream cheese, vegan mayo, and plant-based cheese alternatives might work if you’re feeling adventurous.
Final Thoughts
There’s truly something heartwarming about digging into a warm, cheesy crab casserole that feels both comforting and indulgent. The Crab Casserole with Swiss and Cheddar Cheese Recipe is one of those dishes you’ll want to make again and again, whether for a casual family dinner or a special gathering. Trust me, once you try this rich, savory, and flavorful casserole, it’ll earn a permanent spot in your recipe collection. So go ahead, gather those simple ingredients, and create some magic in your kitchen!
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Crab Casserole with Swiss and Cheddar Cheese Recipe
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Baking
- Cuisine: American
Description
This creamy and flavorful Crab Casserole is a comforting baked dish combining imitation crab meat with a cheesy, seasoned base. It’s easy to prepare and perfect for a weeknight dinner served over rice or pasta.
Ingredients
Cheese and Dairy
- 1 cup Swiss cheese, shredded
- 4 ounces cream cheese, softened
- â…“ cup mayonnaise
- ¼ cup sour cream
- ½ cup cheddar cheese, shredded
Vegetables and Seasonings
- 1 tablespoon onion, minced
- 1 tablespoon green pepper, minced
- 3 green onions, chopped
- ½ teaspoon garlic powder
- ½ teaspoon mustard powder
- ½ teaspoon Old Bay seasoning
- 1 tablespoon chives, finely chopped
Seafood
- 14 ounces imitation crab meat, flake style (Trans-Ocean Crab Classic recommended)
Serving Option
- Steamed rice or pasta, for serving
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C). Lightly grease a casserole dish to prevent sticking and ensure easy cleanup.
- Mix Base: In a large bowl, combine the softened cream cheese, mayonnaise, and sour cream. Stir until the mixture is smooth and creamy, forming a flavorful base for the casserole.
- Add Flavorings: Incorporate the minced onion, green pepper, chopped green onions, garlic powder, mustard powder, and Old Bay seasoning into the base mixture. Mix well to evenly distribute the seasonings and vegetables.
- Add Crab and Cheese: Gently fold in the imitation crab meat along with the shredded Swiss cheese, cheddar cheese, and finely chopped chives. Carefully combine all ingredients to maintain the flaky texture of the crab.
- Bake: Transfer the combined mixture into the prepared casserole dish, spreading it evenly. Bake uncovered in the preheated oven for 25 to 30 minutes until the casserole is bubbly and the top is slightly golden and cooked through.
- Serve: Once baked, serve the crab casserole warm over steamed rice or pasta of your choice for a complete and satisfying meal.
Notes
- For best flavor, allow the cream cheese to soften at room temperature before mixing.
- Use fresh minced vegetables for added texture and brightness.
- Old Bay seasoning is key for authentic crab flavor, but you can adjust to taste.
- This dish can be prepared ahead and refrigerated before baking; increase baking time by 5-10 minutes if baking cold.
- Serve with a side salad or steamed vegetables for a balanced meal.

