Leftover Pot Roast Casserole

I made a very large pot roast and gave some to my neighbor. The next day she shared this leftover roast beef casserole recipe she had made with it. It's absolutely delicious and a great idea to use up those leftovers.

• Preparation Time: 10 mins
• Cooking Time: 35 mins
• Total Time: 45 mins
• Calories: 513 Calories

Ingredients

• ½ cup milk
• 2 cups boiling water
• ¾ cup chopped onion
• 2 stalks celery, chopped
• 1 ½ tablespoons butter, divided
• 2 cups shredded leftover pot roast
• ½ pound baby carrots, cut into horizontal quarters
• 1 (4 ounce) package scalloped potatoes (such as Idahoan®)

Recipe Instructions

Step 1

Preheat the oven to 425 degrees F (220 degrees C). Grease an 8x8-inch baking dish.

Step 2

Melt 1/2 tablespoon butter in a skillet over medium-high heat. Add carrots, onion, and celery; cook until tender, 5 to 8 minutes. Stir in shredded pot roast; set aside.

Step 3

Stir together boiling water and remaining 1 tablespoon butter in a large bowl until butter is melted. Mix in milk, potatoes, and the envelope of sauce mix from the box. Add pot roast mixture and stir until combined. Pour into the prepared baking dish.

Step 4

Bake in the preheated oven until potatoes are fork-tender, 30 to 40 minutes. Remove from the oven and let sauce thicken for 5 minutes before serving.