Comfort food for a cold, rainy day - this shepherd's pie is an easy dinner the whole family will love. Just 5 minutes of prep time! Wondering what to do with leftover pot roast and vegetables? Add mashed potatoes and transform them into this easy casserole!
Grease a baking dish and add the leftover cooked beef in an even layer.
Cover with a layer of the carrots, then the green beans.
Set aside.
Mix the soup, envelope of onion soup mix, and milk until smooth.
Spoon over the beef and vegetables.
Gently move the beef and vegetables around with a spoon to help the gravy mixture cover them.
Spoon the mashed potatoes over the top.
Sprinkle with the Cheddar cheese.
Bake for 30 to 40 minutes or until the cheese is bubbly and the dish is heated all the way through.
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Notes
Wondering what to do with leftover pot roast and vegetables? Turn them into this easy casserole!Expert Tip: Save time by using prepared mashed potatoes from the store. Costco has some that are really good.
This can be made with homemade gravy if you have the time.
Jarred, prepared gravy is a great timesaver if you'd rather use that than the soup.
Canned green beans and canned, sliced carrots keep this dish simple.
Shepherd's Pie can be assembled up to 2 days ahead of time - keep covered in the refrigerator until you are ready to bake it.
Leftovers can be kept refrigerated for up to 4 days.