Reuben Sauerkraut Tomato Casserole: A Comfort Food Classic Reimagined

I’ll never forget the first time I tasted a Reuben sandwich. I was a kid, and the tangy sauerkraut, savory corned beef, and creamy Russian dressing just exploded in my mouth. It was a flavor combination I had never experienced before, and it instantly became one of my favorite sandwiches. Years later, I wanted to capture those beloved flavors in a comforting casserole. The Reuben Sauerkraut Tomato Casserole is exactly that – a warm, cheesy hug that brings back all those happy memories with every bite.

Recipe Overview

• Prep Time: 20 minutes
• Cook Time: 35-40 minutes
• Total Time: 55-60 minutes
• Servings: 4-6
• Yield: 1 casserole
• Dietary Type: Not specified

Ingredients

• 1 (16 ounce) can sauerkraut, UNDRAINED
• 14 ounces corned beef, sliced, and torn into small pieces (can use more)
• 2 1⁄2 cups Swiss cheese, shredded
• 3⁄4 cup mayonnaise
• 1⁄4 cup thousand island dressing, plus 2 tablespoons thousand island dressing (or to taste)
• 2 large fresh tomatoes, sliced
• 1⁄3 cup melted butter
• 1 1⁄2 cups pumpernickel breadcrumbs or 1 1/2 cups rye breadcrumbs

Equipment Needed

• 1 1/2-quart casserole dish (or larger for doubling)
• Mixing bowl
• Measuring cups and spoons

Instructions

1. Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius).
2. Grease a 1 1/2-quart casserole dish. If you are doubling this recipe, be sure to prepare a larger casserole dish to accommodate the increased volume.
3. Place the entire can of sauerkraut, undrained, in the bottom of the greased baking dish. The sauerkraut’s moisture is important for the casserole’s overall texture and prevents it from drying out.
4. Evenly distribute the torn corned beef over the layer of sauerkraut. Don’t be shy – you can definitely use more corned beef if you’re a fan!
5. Generously top the corned beef with the shredded Swiss cheese, ensuring every nook and cranny is covered. The cheese will melt and create a wonderfully gooey layer.
6. In a mixing bowl, combine the mayonnaise and thousand island dressing. Mix well until fully incorporated. Add the additional 2 tablespoons of thousand island dressing (or more, to your liking!). Taste and adjust seasoning if needed.
7. Spread the mayonnaise-dressing mixture evenly over the layer of shredded Swiss cheese. This will add a tangy and creamy element to the casserole.
8. Arrange the tomato slices on top of the mayonnaise-dressing mixture. The tomatoes add a touch of freshness and visual appeal.
9. In a separate bowl, combine the melted butter with the pumpernickel or rye breadcrumbs. Stir until the breadcrumbs are evenly coated with the butter.
10. Sprinkle the buttery breadcrumbs over the tomato slices, creating a crispy topping for the casserole. Make sure to distribute the breadcrumbs evenly for consistent browning.
11. Bake in the preheated oven for 35-40 minutes, or until the casserole is bubbly and the breadcrumb topping is golden brown. The internal temperature should reach at least 165°F (74°C) for safety.
12. Once baked, remove the casserole from the oven and let it stand for 5 minutes before serving. This allows the casserole to set slightly and prevents it from being too runny.

Expert Tips & Tricks

• Breadcrumb Boost: For an extra layer of flavor, try toasting your breadcrumbs lightly in a dry skillet before mixing them with the melted butter. This will enhance their nutty flavor and ensure a crispier topping.
• Cheese Choice: While Swiss cheese is traditional, you can experiment with other cheeses like Gruyere or even a sharp cheddar for a different flavor profile.
• Make-Ahead Magic: Assemble the casserole up to the point of baking, cover it tightly with plastic wrap, and refrigerate for up to 24 hours. When ready to bake, remove the plastic wrap and bake as directed, adding a few extra minutes if necessary.
• Preventing a Soggy Bottom: Make sure your sauerkraut is well-drained (although not completely dry) to prevent the casserole from becoming too watery. You can gently squeeze out excess moisture before adding it to the dish.
• Dress It Up: If you don’t have Thousand Island dressing, you can use a mix of mayonnaise, ketchup, relish, and a dash of Worcestershire sauce for a similar flavor.

Serving & Storage Suggestions

Serve the Reuben Sauerkraut Tomato Casserole hot, right out of the oven. Garnish with a sprinkle of fresh parsley or a dollop of sour cream for an extra touch of elegance. This casserole pairs perfectly with a side salad or steamed vegetables.

Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, simply microwave individual portions or bake the entire casserole in a preheated oven at 350°F (175°C) until heated through. The breadcrumb topping may lose some of its crispness upon reheating, but the flavor will still be fantastic. Freezing is not recommended, as the texture of the sauerkraut and breadcrumbs may be compromised.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value*
Calories	550 kcal	28%
Total Fat	40g	62%
Saturated Fat	20g	100%
Cholesterol	100mg	33%
Sodium	1500mg	63%
Total Carbohydrate	30g	10%
Dietary Fiber	4g	16%
Sugars	8g
Protein	25g	50%

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Variations & Substitutions

• Vegetarian Reuben: Substitute the corned beef with grilled tempeh or sliced portobello mushrooms marinated in a smoky paprika sauce.
• Gluten-Free Option: Use gluten-free breadcrumbs made from almond flour or a gluten-free bread. Ensure all other ingredients are also gluten-free.
• Spicy Kick: Add a pinch of red pepper flakes to the mayonnaise-dressing mixture for a touch of heat.
• Different Bread: While pumpernickel or rye are traditional, you can use any type of breadcrumb you prefer. Even crushed Ritz crackers would be delicious!
• Sauerkraut Swap: Experiment with different types of sauerkraut, such as caraway sauerkraut or even a spicy kimchi for an adventurous twist.

FAQs (Frequently Asked Questions)

Q: Can I use pre-shredded Swiss cheese, or is it better to shred my own?
A: Pre-shredded cheese is convenient, but freshly shredded cheese melts more smoothly because it lacks the anti-caking agents added to pre-shredded varieties.

Q: Can I double the recipe and bake it in a larger dish?
A: Absolutely! Just make sure to use a larger casserole dish and increase the baking time by about 10-15 minutes, or until the casserole is heated through and the topping is golden brown.

Q: What can I serve with this casserole?
A: This casserole pairs well with a simple green salad, steamed vegetables, or a side of roasted potatoes. A crisp pickle spear is also a great accompaniment.

Q: Can I use a different type of dressing instead of Thousand Island?
A: Russian dressing is the most common substitute and offers a similar tangy flavor. You could also experiment with a homemade dressing using mayonnaise, ketchup, relish, and spices.

Q: My breadcrumb topping is browning too quickly. What should I do?
A: If the topping is browning too quickly, loosely cover the casserole with aluminum foil during the last 10-15 minutes of baking.

Final Thoughts

The Reuben Sauerkraut Tomato Casserole is more than just a recipe; it’s an invitation to create a warm, comforting, and memorable meal. Whether you’re a longtime Reuben lover or new to this classic flavor combination, I encourage you to give this recipe a try. Don’t be afraid to experiment with variations and substitutions to make it your own. And most importantly, share your creations with friends and family! I’d love to hear your feedback and see your delicious results. So, gather your ingredients, preheat your oven, and get ready to experience the magic of a Reuben sandwich in casserole form!