How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Mini Reuben Casseroles?

You need 12 ingredients. The key ingredients include: 1 medium onion, chopped, 1 medium green pepper, chopped, 2 teaspoons olive oil, 2 cups cubed cooked beef roast, and more.

Is Mini Reuben Casseroles suitable as salads?

Yes, Mini Reuben Casseroles falls under the Salads category and is a great choice for this type of meal.

How do I store leftover Mini Reuben Casseroles?

Keep refrigerated in an airtight container and enjoy within 1–2 days for the best freshness. Best served cold — no reheating needed.

Mini Reuben Casseroles Recipe

Name: Mini Reuben Casseroles
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 medium onion, chopped; 1 medium green pepper, chopped; 2 teaspoons olive oil; 2 cups cubed cooked beef roast; 1 can (14 ounces) sauerkraut, rinsed and well drained; 1 can (10-3/4 ounces) condensed cream of chicken soup, undiluted; 1-1/4 cups shredded Swiss cheese, divided; 1/3 cup 2% milk; 1/2 cup Thousand Island salad dressing; 2 slices rye bread, cubed; 1 tablespoon butter, melted; 1/2 teaspoon onion powder

Try this homemade Mini Reuben Casseroles recipe the whole family will love. Made with onion, green pepper, olive oil and beef roast. Easy step-by-step i…

This Mini Reuben Casseroles relies on simple, everyday ingredients such as medium onion, chopped, medium green pepper, chopped, olive oil and cubed cooked beef roast. It comes together quickly and makes 4 servings, at about 640 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Salads

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Mini Reuben Casseroles

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions