Easy Casserole (Leftover Roast Beef)
A hearty casserole combining tender leftover roast beef, potatoes, and onions in a savory gravy topped with cheese, perfect for a comforting family meal.
Ingredients
Instructions
- Mix the brown gravy as directed on the package.
- Pour the prepared gravy into a Pyrex dish.
- Slice the leftover roast beef and add it into the gravy.
- Layer sliced onions and peeled potatoes alternately over the beef and gravy.
- Cover the casserole with grated cheese.
- Cover with foil and bake in a 300°F oven for 1 hour.
Tips & Substitutions
To enhance the flavor, consider adding garlic powder or herbs like thyme or rosemary to the gravy. If you don’t have brown gravy mix, you can use homemade beef broth thickened with cornstarch. For a creamier texture, try adding a layer of cream of mushroom soup in between the layers. This dish is a great way to use up leftover roast beef from Lu'S Roast Beef.
Serving Suggestions
This Easy Casserole pairs beautifully with a side salad or steamed vegetables for a complete meal. You can also serve it with crusty bread or dinner rolls to soak up the gravy. For a heartier option, consider serving alongside Hot Chili Beans to complement the beef flavors. This dish is perfect for family gatherings or a cozy weeknight dinner.
Storage & Reheating
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, cover the casserole with foil and warm it in a preheated oven at 350°F until heated through, about 20-30 minutes. You can also microwave individual portions, but be sure to cover them to retain moisture.
Nutrition & Diet Analysis (per serving)
Each serving of Easy Casserole (Leftover Roast Beef) contains roughly 45 calories, with 3g protein, 3g carbohydrates, and 3g fat.
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I use other meats instead of roast beef?
Absolutely! This casserole is versatile; you can substitute leftover roast chicken or turkey. Just ensure the meat is cooked and shredded or sliced thinly to layer properly. For a vegetarian version, try using mushrooms and beans as a hearty alternative.
What should I do if I don't have gravy mix?
If you don't have brown gravy mix, you can easily make a quick homemade version using beef broth, cornstarch, and seasonings. Combine 2 cups of broth with 2 tablespoons of cornstarch mixed in cold water, and cook until thickened. This will give you a rich base for your casserole.
Can I prepare this casserole ahead of time?
Yes, you can assemble the casserole a day in advance. Just layer the ingredients as instructed, cover tightly, and refrigerate. When ready to bake, allow it to sit at room temperature for about 30 minutes before placing it in the oven to ensure even cooking.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).