Leftover Roast Beef Casserole
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The Spruce
Nutrition Facts (per serving) | |
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272 | Calories |
11g | Fat |
16g | Carbs |
29g | Protein |
Nutrition Facts | |
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Servings: 4 | |
Amount per serving | |
Calories | 272 |
% Daily Value* | |
Total Fat 11g | 14% |
Saturated Fat 5g | 25% |
Cholesterol 74mg | 25% |
Sodium 1434mg | 62% |
Total Carbohydrate 16g | 6% |
Dietary Fiber 3g | 11% |
Total Sugars 6g | |
Protein 29g | |
Vitamin C 8mg | 40% |
Calcium 136mg | 10% |
Iron 4mg | 20% |
Potassium 978mg | 21% |
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice. |
There are lots of recipes for leftover roast beef and many ways to use it. Make a cottage pie, use it in sandwiches, heat it in your favorite stroganoff sauce, or slice the beef into strips and add it to a tossed salad. Or turn your leftovers into a whole new dinner and make this roast beef casserole.
For this recipe, you can either use canned or prepared beef gravy or make your own from scratch using a roux; don't worry if you don't have the pan drippings from the roast.
This casserole is simply a mixture of cooked roast beef, gravy, and vegetables with a melted cheese topping completing the dish. It's a great spur-of-the-moment dish to fix and serve with boiled or mashed potatoes. It's excellent over rice or noodles as well.
Click Play to See This Leftover Roast Beef Casserole Recipe Come Together
Ingredients
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Cooking spray, or oil, for greasing
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1 cup frozen pearl onions
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1 (10-ounce) package frozen peas and carrots (about 1 1/2 cups)
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2 cups diced leftover cooked roast beef, 1/4-inch to 1/2-inch dice
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1 cup beef gravy, homemade, canned, or made from dry mix
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1/2 cup shredded sharp cheddar cheese
Steps to Make It
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Gather the ingredients.
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Preheat the oven to 350 F. Lightly grease a 1 1/2-quart to 2-quart casserole dish or spray it with nonstick cooking spray.
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In a medium saucepan, cover the frozen pearl onions and frozen peas and carrots with water. Bring to a boil.
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Reduce the heat and simmer for about 5 minutes or until the vegetables are tender.
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Drain the vegetables thoroughly and transfer them to a large bowl.
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Combine the roast beef with the gravy and then add it to the bowl of vegetables. Mix well.
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Transfer the beef and vegetable mixture to the prepared casserole, spreading it out evenly, and top with shredded cheddar cheese.
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Bake in the preheated oven for 25 to 35 minutes, or until the filling is bubbling and the cheese has melted.
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Serve and enjoy.
The Spruce
Glass Bakeware Warning
For premade casseroles or leftovers that are in a glass baking dish and have been refrigerated, do not place directly into a hot oven as the glass can shatter. Instead, place any cold glass bakeware into a cold oven to warm up while it preheats. Or allow the bakeware to rest outside of the fridge for 30 minutes to reach room temperature while the oven preheats.
How to Store and Freeze
- Leftover casserole will keep in the fridge for three to four days in an airtight container. Reheat in the microwave or an oven at low temperature until completely hot.
- For longer storage in the freezer, the casserole should keep for up to three months if frozen in an airtight container or zip-close plastic bag.
Recipe Variations
- If you don't have leftover roast beef, use thick-sliced deli roast beef or diced raw meat. Stir-fry the raw beef before combining it with the gravy.
- Swap the leftover roast beef for browned ground beef in the recipe.
- Diced leftover lamb or roast pork are some other excellent alternatives, along with beef or pork gravy.
- The vegetables are interchangeable as well. You can use frozen mixed vegetables, peas, green beans, or diced carrots. If you don't have pearl onions, use 1 medium onion, halved and sliced.
How Do You Moisten Leftover Roast Beef?
When reheating leftover roast beef, try adding a little beef broth to help restore some of the meat's moisture. Incorporating the beef into a moist casserole with gravy can also help restore the meat to its former glory.