Leftover roast beef can be repurposed into many delicious meals. Here are some ideas:

1. Soup: Use the leftover roast beef to make a hearty soup. Add vegetables, such as carrots, celery, and onions, and some broth or stock. You can also add some noodles or rice to make it more filling.

2. Shepherds Pie: Layer the leftover roast beef with mashed potatoes and vegetables, such as peas and carrots, in a casserole dish. Bake in the oven until the top is golden brown.

3. Beef Salad: Chop up the leftover roast beef and mix it with chopped celery, onion, pickles, Miracle Whip, and sour cream. Serve on hearty bread for sandwiches the next day.

4. Beef Stew: Use the leftover roast beef to make a hearty beef stew. Add vegetables, such as potatoes, carrots, and onions, and some broth or stock. Let it simmer on the stove until the vegetables are tender.

5. Beef Stroganoff: Use the leftover roast beef to make a delicious beef stroganoff. Sauté onions and mushrooms in a pan, then add the beef and some sour cream. Serve over egg noodles.

6. Beef Enchiladas: Use the leftover roast beef to make beef enchiladas. Roll up the beef in tortillas with cheese and enchilada sauce, then bake in the oven until bubbly.

7. Beef Pot Pie: Cut up the leftover roast beef and mix it with gravy, peas, and leftover vegetables like carrots, potatoes, and onions. Top with a pie crust and bake in the oven until golden brown.

8. Beef Pasta Skillet: Use the leftover roast beef to make a beef pasta skillet. Sauté onions and garlic in a pan, then add the beef, pasta, and some tomato sauce. Top with cheese and bake in the oven until bubbly.

9. Beef Barley Soup: Use the leftover roast beef to make a hearty beef barley soup. Add barley, vegetables, and some broth or stock. Let it simmer on the stove until the barley is tender.

10. Beef Tacos: Use the leftover roast beef to make beef tacos. Warm up some tortillas, then add the beef, cheese, lettuce, and salsa.

These are just a few ideas for what to do with leftover roast beef. With a little creativity, you can turn your leftovers into delicious meals that your family will love.