Few meals are as comforting as a Pot Roast Over Mashed Potatoes. A well-seasoned beef roast is slowly cooked with onions, carrots, garlic, and herbs until it becomes incredibly tender. The flavorful cooking juices are then turned into a rich gravy and spooned over creamy mashed potatoes.
It’s the kind of hearty homemade dinner that fills the kitchen with an amazing aroma and makes a perfect Sunday or family meal.
Ingredients
For the Pot Roast
- 3–4 lb (1.4–1.8 kg) beef chuck roast
- 2 tablespoons olive oil
- 1½ teaspoons salt
- 1 teaspoon black pepper
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon paprika
- 1 large onion, sliced
- 4 cloves garlic, minced
- 4 carrots, peeled and cut into chunks
- 3 celery stalks, cut into chunks
- 2 tablespoons tomato paste
- 2 cups beef broth
- 1 cup red wine, optional; replace with additional beef broth
- 1 tablespoon Worcestershire sauce
- 1 teaspoon dried thyme
- 1 teaspoon dried rosemary
- 2 bay leaves
- 1 lb (450 g) baby potatoes or additional carrots, optional
For the Mashed Potatoes
- 2½ lb (1.1 kg) Yukon Gold or Russet potatoes
- 4 tablespoons unsalted butter
- ½–¾ cup warm milk
- ½ teaspoon salt, plus more to taste
- ¼ teaspoon black pepper
- 2 tablespoons sour cream or cream cheese, optional
For the Gravy
- 2 tablespoons butter
- 2 tablespoons all-purpose flour
- 2 cups strained pot-roast cooking liquid
Instructions
1. Season the Beef
Pat the chuck roast dry with paper towels.
Season all sides generously with salt, black pepper, garlic powder, onion powder, and paprika.
Let it sit for about 15–20 minutes while you prepare the other ingredients.
2. Sear the Roast
Heat the olive oil in a large Dutch oven over medium-high heat.
Place the roast in the pot and sear for approximately 3–4 minutes per side, until deeply browned.
Don’t rush this step. The browned surface adds tremendous flavor to the finished gravy.
Transfer the roast to a plate.
3. Cook the Aromatics
Reduce the heat to medium.
Add the onion and celery to the same pot and cook for about 4–5 minutes.
Add the garlic and tomato paste.
Cook for another minute, stirring frequently.
4. Deglaze the Pot
Pour in the red wine, if using, and scrape the browned bits from the bottom of the pot.
Allow it to simmer for 2–3 minutes.
Add the beef broth, Worcestershire sauce, thyme, rosemary, and bay leaves.
5. Slow-Cook the Roast
Return the beef to the pot.
Add the carrots around the roast.
The liquid should come roughly one-third to halfway up the sides of the meat—not completely cover it.
Cover with a tight-fitting lid.
Transfer to a 325°F (165°C) oven.
Cook for approximately 3–4 hours, or until the beef is extremely tender and easily pulls apart with a fork.
If using additional potatoes in the pot, add them during the final 60–90 minutes so they don’t become overly soft.
6. Make the Mashed Potatoes
While the roast is cooking, peel the potatoes and cut them into similarly sized chunks.
Place them in a large pot and cover with cold water.
Add a generous pinch of salt.
Bring to a boil and cook for approximately 15–20 minutes, or until completely fork-tender.
Drain thoroughly.
Return the potatoes to the warm pot for a minute or two to allow excess moisture to evaporate.
Add the butter and mash.
Gradually add warm milk until the potatoes reach your preferred consistency.
Stir in sour cream or cream cheese if desired.
Season with salt and black pepper.
7. Make the Gravy
Remove the finished roast and vegetables from the Dutch oven.
Strain the cooking liquid into a measuring jug.
Skim excess fat from the surface.
Melt the butter in a saucepan over medium heat.
Whisk in the flour and cook for about 1 minute.
Slowly whisk in approximately 2 cups of the strained cooking liquid.
Continue whisking until the gravy thickens, usually 3–5 minutes.
Taste and adjust the seasoning.
If the gravy is too thick, add a little more broth.
8. Shred the Beef
Allow the roast to rest for about 10–15 minutes.
Slice it or gently pull it apart into large pieces using two forks.
Discard any large pieces of excess fat or connective tissue.
How to Serve
Spoon a generous mound of creamy mashed potatoes onto each plate.
Top with tender pieces of pot roast.
Add carrots and onions around the beef.
Finally, pour plenty of warm gravy over the roast and mashed potatoes.
Garnish with fresh parsley if desired.
Tips for the Best Pot Roast
Choose Chuck Roast
Beef chuck contains enough connective tissue and fat to become exceptionally tender during slow cooking.
Don’t Skip the Sear
A good sear creates browned flavors that make the finished roast and gravy much richer.
Keep the Heat Low and Slow
Pot roast benefits from gentle cooking over several hours. If the beef is still tough, it often simply needs more time.
Don’t Drown the Meat
You don’t need to completely submerge the roast. Too much liquid can make the finished dish taste more like boiled beef.
Use Warm Milk for Potatoes
Adding cold milk can cool down the potatoes and make the texture less smooth.
Slow Cooker Method
You can easily make this recipe in a slow cooker.
Sear the beef first, then transfer it to the slow cooker.
Add the onions, carrots, celery, garlic, tomato paste, broth, Worcestershire sauce, herbs, and bay leaves.
Cook on:
- LOW: 8–9 hours
- HIGH: 4–5 hours
The beef should be fork-tender before serving.
Make the mashed potatoes separately and use the slow-cooker juices to prepare the gravy.
Variations
Mushroom Pot Roast
Add 8 oz sliced mushrooms during the cooking process.
Garlic Herb Pot Roast
Increase the garlic and add fresh rosemary and thyme.
Onion Pot Roast
Add extra sliced onions for a sweeter, richer gravy.
Spicy Pot Roast
Add a pinch of crushed red pepper flakes or smoked paprika.
Creamy Mashed Potatoes
Replace some of the milk with heavy cream and add roasted garlic for extra richness.
Storage
Store leftover beef, vegetables, gravy, and mashed potatoes in separate airtight containers when possible.
Refrigerate within 2 hours and use within 3–4 days.
The pot roast and gravy can also be frozen for approximately 2–3 months for best quality.
Thaw refrigerated and reheat thoroughly before serving.
Frequently Asked Questions
Why is my pot roast tough?
Pot roast usually becomes tender when cooked long enough for its connective tissue to break down. If it’s tough but fully cooked, continue cooking until it becomes fork-tender.
Can I use another cut of beef?
Yes. Brisket or a well-marbled bottom round can work, although chuck is particularly forgiving and flavorful for pot roast.
Can I make this without wine?
Absolutely. Replace the wine with additional beef broth.
Can I make mashed potatoes ahead of time?
Yes. Keep them warm in a covered pot or refrigerate and gently reheat with a little extra milk and butter.
How do I make extra gravy?
Simply reserve more of the cooking liquid and increase the butter-and-flour roux proportionally.
Final Thoughts
Pot Roast Over Mashed Potatoes is the definition of comfort food. Slowly cooked chuck roast becomes tender and flavorful, while the onions, carrots, herbs, and beef juices create a deeply savory gravy.
Serve that rich gravy over buttery mashed potatoes, add a few tender vegetables, and you have a satisfying homemade meal that’s perfect for a family dinner or relaxed weekend gathering.
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