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 Roast Beef Casserole?

You need 11 ingredients. The key ingredients include: 2 c. roast beef, cubed, 1 large onion, chopped, 1 green pepper, chopped, 3 sticks celery, chopped, and more.

Is Roast Beef Casserole suitable as soups & stews?

Yes, Roast Beef Casserole falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Roast Beef Casserole?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Roast Beef Casserole Recipe

Name: Roast Beef Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 c. roast beef, cubed; 1 large onion, chopped; 1 green pepper, chopped; 3 sticks celery, chopped; 2 Tbsp. margarine or oil; 1 c. water; 1/2 tsp. salt; 1 Tbsp. soy sauce; a few drops Tabasco sauce; 1 can cream of chicken soup; 1 can cream of mushroom soup

Try this homemade Roast Beef Casserole recipe the whole family will love. Made with beef, onion, green pepper and celery. Easy step-by-step instructions…

This Roast Beef Casserole relies on simple, everyday ingredients such as roast beef, cubed, large onion, chopped, green pepper, chopped and celery, chopped. It comes together quickly and makes 4 servings, at about 587 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 Soups & Stews

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

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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Roast Beef Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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