Slow Cooker Pot Roast

Featured in: Easy Weeknight Meals

This dish features a succulent beef chuck slow-cooked to fork-tender perfection with aromatic herbs and root vegetables. Carrots, celery, and onions simmer in a flavorful broth enriched with tomato paste and Worcestershire sauce, creating a rich base. The accompanying mashed potatoes are creamy and buttery, made from Yukon Gold or Russet varieties to complement the hearty meat. Garnished with fresh parsley and drizzled with pan juices, this comforting meal combines deep flavors with simple techniques.

Updated on Tue, 11 Nov 2025 09:55:00 GMT
Tender Slow Cooker Pot Roast with mashed potatoes, offering a comforting, homestyle American meal. Save
Tender Slow Cooker Pot Roast with mashed potatoes, offering a comforting, homestyle American meal. | ovenharmony.com

A classic, comforting dish featuring tender beef pot roast slow-cooked with vegetables and rich gravy, served alongside creamy mashed potatoes.

I still remember when I first made this pot roast on a chilly Sunday. The house filled with cozy aromas all day while the slow cooker did its magic, and my family gathered eagerly around the table to dig in.

Ingredients

  • Beef chuck roast: 3 lbs (1.4 kg)
  • Kosher salt: 1 tbsp
  • Black pepper: 1 tsp
  • Olive oil: 2 tbsp
  • Onion: 1 large, sliced
  • Garlic: 4 cloves, minced
  • Carrots: 4 large, peeled and cut into 2-inch pieces
  • Celery: 3 stalks, cut into 2-inch pieces
  • Beef broth: 2 cups (480 ml), gluten-free if needed
  • Tomato paste: 2 tbsp
  • Worcestershire sauce: 1 tbsp, gluten-free if needed
  • Dried thyme: 1 tsp
  • Dried rosemary: 1 tsp
  • Bay leaves: 2
  • Yukon Gold or Russet potatoes: 2 lbs (900 g), peeled and cut into chunks
  • Unsalted butter: 4 tbsp
  • Whole milk: ½ cup (120 ml), plus more as needed
  • Salt: 1 tsp (plus more to taste)
  • Black pepper: ½ tsp
  • Chopped fresh parsley: for garnish (optional)

Instructions

Prepare the roast:
Pat the beef chuck roast dry and season all sides with salt and pepper.
Sear the beef:
In a large skillet, heat olive oil over medium-high heat. Sear the roast on all sides until browned (about 3–4 minutes per side). Transfer to the slow cooker.
Add vegetables:
Add onion, garlic, carrots, and celery around the roast in the slow cooker.
Make the gravy:
In a bowl, whisk together beef broth, tomato paste, Worcestershire sauce, thyme, rosemary, and bay leaves. Pour over the roast and vegetables.
Slow cook:
Cover and cook on low for 8 hours, or until the beef is fork-tender.
Prepare Mashed Potatoes:
About 40 minutes before serving, place potatoes in a large pot and cover with cold water. Add 1 tsp salt. Bring to a boil, reduce heat, and simmer until potatoes are very tender (15–20 minutes). Drain well and return potatoes to the pot. Add butter and milk; mash until smooth and creamy. Season with salt and pepper to taste. Add more milk if needed for desired consistency.
Finish and serve:
Remove the roast from the slow cooker and let rest for 5 minutes. Discard bay leaves. Shred or slice the beef. Serve pot roast and vegetables over a bed of mashed potatoes. Drizzle with pan juices and garnish with fresh parsley if desired.
A close-up of a steaming Slow Cooker Pot Roast, fork-tender beef and hearty vegetables. Save
A close-up of a steaming Slow Cooker Pot Roast, fork-tender beef and hearty vegetables. | ovenharmony.com

One memorable evening, my son requested seconds, eager for more mashed potatoes and gravy. Gathered together, we swapped stories and savored every bite.

Required Tools

Use a 6-quart slow cooker, large skillet, chefs knife and cutting board, large pot, potato masher or ricer, and measuring cups and spoons for perfect results.

Allergen Information

This dish contains dairy from butter and milk. Worcestershire sauce may contain anchovies (fish). Gluten-free if using suitable broth and sauce—always check labels for allergens.

Nutritional Information

Each serving provides about 520 calories, 23 g total fat, 36 g carbohydrates, and 44 g protein, making it a hearty main dish for dinner.

Creamy mashed potatoes alongside juicy Slow Cooker Pot Roast, an ideal dinner for any family. Save
Creamy mashed potatoes alongside juicy Slow Cooker Pot Roast, an ideal dinner for any family. | ovenharmony.com

This slow cooker pot roast is sure to warm up any family meal. Make it once and it will become a trusted favorite at your dinner table.

Recipe FAQ

What cut of beef works best for this dish?

Beef chuck roast is ideal because its marbling breaks down during slow cooking, resulting in tender and flavorful meat.

Can I make the gravy thicker?

Yes, remove some cooking liquid, whisk it with cornstarch, and simmer it until thickened to enhance the gravy’s texture.

What potatoes are best for creamy mashed potatoes?

Yukon Gold potatoes produce a smooth, buttery mash, but Russet potatoes also yield excellent creamy results.

How can I add richer flavor to the broth?

Substituting part of the broth with red wine, such as Cabernet Sauvignon, adds depth and complexity to the dish.

Is this dish gluten-free?

It can be gluten-free if you use beef broth and Worcestershire sauce labeled gluten-free; always check ingredient labels.

Slow Cooker Pot Roast

Tender beef braised with savory vegetables, served alongside creamy mashed potatoes and rich gravy.

Prep duration
20 min
Cook duration
480 min
Complete duration
500 min
Created by Claire Johnson

Classification Easy Weeknight Meals

Complexity Easy

Heritage American

Output 6 Portions

Dietary considerations Without gluten

Components

Pot Roast

01 3 lbs beef chuck roast
02 1 tbsp kosher salt
03 1 tsp black pepper
04 2 tbsp olive oil
05 1 large onion, sliced
06 4 cloves garlic, minced
07 4 large carrots, peeled and cut into 2-inch pieces
08 3 celery stalks, cut into 2-inch pieces
09 2 cups gluten-free beef broth
10 2 tbsp tomato paste
11 1 tbsp gluten-free Worcestershire sauce
12 1 tsp dried thyme
13 1 tsp dried rosemary
14 2 bay leaves

Mashed Potatoes

01 2 lbs Yukon Gold or Russet potatoes, peeled and cut into chunks
02 4 tbsp unsalted butter
03 ½ cup whole milk
04 1 tsp salt
05 ½ tsp black pepper

Optional Garnish

01 Chopped fresh parsley

Directions

Phase 01

Season the beef: Pat the beef chuck roast dry and season all sides evenly with kosher salt and black pepper.

Phase 02

Sear the roast: Heat olive oil in a large skillet over medium-high heat. Sear the roast on all sides until browned, approximately 3 to 4 minutes per side. Transfer the roast to the slow cooker.

Phase 03

Add vegetables: Arrange sliced onion, minced garlic, carrots, and celery around the roast inside the slow cooker.

Phase 04

Prepare and add broth mixture: In a bowl, whisk together beef broth, tomato paste, Worcestershire sauce, dried thyme, dried rosemary, and bay leaves. Pour this mixture evenly over the roast and vegetables.

Phase 05

Slow cook the beef: Cover and cook on low heat for 8 hours, or until the beef becomes fork-tender.

Phase 06

Boil the potatoes: About 40 minutes before serving, place peeled and chunked potatoes into a large pot. Cover with cold water, add 1 teaspoon of salt, bring to a boil, then reduce heat and simmer until potatoes are very tender, approximately 15 to 20 minutes.

Phase 07

Mash the potatoes: Drain the potatoes thoroughly and return to the pot. Add unsalted butter and whole milk, mashing until smooth and creamy. Season with salt and black pepper to taste; add more milk as necessary to reach desired consistency.

Phase 08

Rest and shred the beef: Remove the roast from the slow cooker and allow to rest for 5 minutes. Discard bay leaves. Shred or slice the beef as preferred.

Phase 09

Serve: Serve the pot roast and cooked vegetables atop the mashed potatoes. Drizzle with pan juices and garnish with chopped fresh parsley if desired.

Necessary tools

  • Slow cooker (6-quart or larger)
  • Large skillet
  • Chef’s knife and cutting board
  • Large pot
  • Potato masher or ricer
  • Measuring cups and spoons

Allergy details

Review each component for potential allergens and consult healthcare professionals if you're unsure about ingredients.
  • Contains dairy (butter, milk).
  • Worcestershire sauce may contain anchovies (fish).
  • Gluten-free if using gluten-free beef broth and Worcestershire sauce.
  • Always verify ingredient labels for allergens.

Nutritional information (each portion)

These values are approximate guidelines only and shouldn't replace professional medical guidance.
  • Energy: 520
  • Fats: 23 g
  • Carbohydrates: 36 g
  • Proteins: 44 g