Crockpot Chicken Reuben Casserole | Easy St Patrick’s Day
Crockpot Chicken Reuben Casserole is a hearty dish that’s both nostalgic and innovative, bringing the flavors of a traditional Reuben sandwich into a warm, comforting casserole form. Imagine tender chunks of chicken swimming in a savory combination of sauerkraut and creamy thousand island dressing, all topped off with luscious melted Swiss cheese. What stands out is how easily it fills your home with a rich aroma, making it feel like a cozy gathering place, perfect for celebrating St. Patrick’s Day or just a regular weeknight dinner. This dish also promises a satisfying experience without the fuss of endless prep—it’s simple enough that even novice cooks can shine!
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The first time I made this easy casserole, I was hosting a casual get-together for friends. They loved how I turned a classic deli favorite into a slow-cooked favorite. The tender chicken combined with the tang of the sauerkraut and the creamy dressing left my friends asking for the recipe! Trust me, when you try this Crockpot Chicken Reuben Casserole, you’ll understand why it has become a staple in my home. Not only is it budget-friendly and straightforward, but it also impressively serves a crowd, making it the perfect dish for your next gathering. Grab your crockpot and let’s dive in!
Why You’ll Love This Recipe
- Simple & Quick: With just 5 minutes of prep time, you can set it and forget it!
- Irresistible Flavor: The combination of tender chicken, tangy sauerkraut, and cheesy goodness creates a symphony of flavors.
- Eye-Catching Appeal: This casserole looks as delightful as it tastes, making it a centerpiece for any occasion.
- Flexible Serving: Perfect for any meal—whether it’s lunch, dinner, or a festive treat.
- Diet-Friendly Options: There’s potential for gluten-free alternatives, making it versatile for various diets.

Ingredients You’ll Need
- 2 lbs. boneless skinless chicken breasts, cubed: Chicken breasts provide the protein base of this dish, making it satisfying. You can substitute with turkey if desired.
- 1/2 tsp. salt: This enhances the natural flavors of the chicken and other ingredients.
- 1/4 tsp. ground pepper: A bit of pepper adds depth and balances the flavors.
- 1 tsp. garlic powder: Garlic powder infuses the dish with savory notes, making it aromatic.
- 1/2 tsp. caraway seeds: These seeds add a distinctively earthy flavor that’s traditional in Reuben dishes. You can omit them if preferred.
- 32 oz. can sauerkraut, drained very well: The tanginess of sauerkraut is crucial to replicate the Reuben taste; ensure it’s well-drained to avoid a watery casserole.
- 1 cup thousand island dressing: The creamy dressing ties everything together with a zesty kick—look for a refrigerated variety for the best flavor!
- 8 oz. Swiss cheese: Melty Swiss adds luscious creaminess; alternatively, you can use provolone or mozzarella for a milder flavor.
How to Make Crockpot Chicken Reuben Casserole | Easy St Patrick’s Day
Add Chicken: Place the cubed chicken breasts (2 lbs.) into the slow cooker. Sprinkle salt (1/2 tsp.), ground pepper (1/4 tsp.), garlic powder (1 tsp.), and caraway seeds (1/2 tsp.) evenly over the chicken. Use your hands to mix until the chicken is well-coated with spices.
Layer Sauerkraut: Pour the well-drained sauerkraut (32 oz.) over the seasoned chicken in an even layer. This acts as a flavor base, so spread it out evenly to ensure every bite is packed with tangy goodness.
Spread Dressing: Next, drizzle one cup of thousand island dressing over the sauerkraut. Don’t skimp—this is where the magic happens! Use a spatula to spread it evenly across the top for full flavor coverage.
Add Cheese: Next, arrange the slices of Swiss cheese (8 oz.) evenly over the dressing. Feel free to overlap them a bit for a nice presentation and to ensure melty cheese covers every delicious element.
Cook Slowly: Cover the slow cooker and cook on low for 5 hours, or until the chicken is thoroughly cooked and the casserole is bubbling. You’ll know it’s ready when there’s a delightful fragrance in the air and the casserole is golden at the edges.
Serve & Enjoy: Spoon the casserole onto plates and enjoy this comforting dish hot from the slow cooker! It’s perfect on its own or paired with a light salad or crusty bread.

Storing & Reheating
To store your leftover Crockpot Chicken Reuben Casserole, allow it to cool to room temperature before transferring it to an airtight container. It can be kept in the refrigerator for up to 4 days. For longer storage, freeze it in a freezer-safe container. It will maintain great quality for up to three months. When you’re ready to enjoy again, simply reheat portions in the microwave for about 3–5 minutes, or warm it in the oven at 350°F for 15–20 minutes. Keep in mind that the texture may change slightly, but refreshing it with a drizzle of additional dressing can bring back that creamy goodness!
Chef’s Helpful Tips
- Avoid over-mixing when incorporating the chicken and spices—too much handling can make the chicken tough.
- For even clearer flavors, use room temperature chicken. Cold chicken may not cook evenly.
- If you want extra cheesy goodness, consider using a blend of Swiss and cheddar for a deeper flavor profile.
- Keep an eye on the cooking time in different slow cookers; some may cook faster than others.
- Feel free to add some chopped green onions or a sprinkle of fresh parsley just before serving for a pop of color and fresh flavor!
Crockpot Chicken Reuben Casserole is not just easy to prepare; it’s a heartwarming dish that brings people together. Whether you’re celebrating St. Patrick’s Day or simply craving a taste of something comforting, this recipe is here to brighten your table. Plus, its versatility means it can be your go-to for any occasion!
Recipe FAQs
Can I use frozen chicken in this recipe?
Yes, you can use frozen chicken breasts, but you’ll need to increase the cooking time. Ensure they are fully cooked and reach an internal temperature of 165°F before serving.
Can this casserole be made ahead of time?
Absolutely! You can prepare everything in the slow cooker and refrigerate it overnight. Just add an additional hour of cooking time on the day you plan to serve it.
What if I don’t have thousand island dressing?
If you’re missing thousand island dressing, you can make a quick substitute using mayonnaise and ketchup mixed with a dash of pickle relish for that signature tangy flavor.
Is there a way to make this recipe dairy-free?
Definitely! You can replace Swiss cheese with a dairy-free cheese alternative and use a dairy-free dressing. This will still yield a delicious, satisfying meal!
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Crockpot Chicken Reuben Casserole | Easy St Patrick’s Day
- Prep Time: 5 minutes
- Cook Time: 305 minutes
- Total Time: 5 hours 10 minutes
- Yield: 6 servings 1x
- Category: Main Dishes
- Method: Slow Cooker
- Cuisine: American
Description
This Crockpot Chicken Reuben Casserole is a delightful mix of tender chicken, tangy sauerkraut, and melted Swiss cheese, making it an easy and tasty choice for a quick dinner or festive occasion.
Ingredients
- 2 lbs. boneless skinless chicken breasts, cubed
- 1/2 tsp. salt
- 1/4 tsp. ground pepper
- 1 tsp. garlic powder
- 1/2 tsp. caraway seeds
- 32 oz. can sauerkraut, drained very well
- 1 cup thousand island dressing
- 8 oz. swiss cheese
Instructions
- Place the cubed chicken in the slow cooker and sprinkle with salt, pepper, garlic powder, and caraway seeds. Mix them together well.
- Layer the drained sauerkraut over the chicken evenly.
- Spread the thousand island dressing over the sauerkraut.
- Top with even layers of Swiss cheese slices.
- Cover and cook on low for 5 hours, or until the chicken is thoroughly cooked and bubbling.
- Serve immediately and enjoy your meal!
Notes
For extra flavor, marinate the chicken in dressing before cooking.
Feel free to add more cheese on top for a cheesier casserole.
Serve with a side of green vegetables for a balanced meal.
Nutrition
- Serving Size: 1 serving
- Calories: 420
- Sugar: 5g
- Sodium: 860mg
- Fat: 22g
- Saturated Fat: 10g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 15g
- Fiber: 4g
- Protein: 40g
- Cholesterol: 120mg
