Slow Cooker Pot Roast

Featured in: Hearty Comfort Dinners

This dish features a tender beef chuck roast seasoned and seared before slow cooking alongside onions, garlic, carrots, and celery in a flavorful broth mixture infused with herbs. The meat becomes fork-tender after hours of gentle cooking. Accompanying this is a smooth mash of Yukon Gold or Russet potatoes blended with butter and milk, seasoned simply with salt and pepper to highlight its creamy texture. The meal is finished with pan juices poured over and a sprinkle of fresh parsley for a bright touch. It’s an easy, comforting plate perfect for family dinners or special gatherings.

Updated on Tue, 11 Nov 2025 17:37:00 GMT
Tender slow cooker pot roast with carrots, celery, and mashed potatoes, ready to serve. Save
Tender slow cooker pot roast with carrots, celery, and mashed potatoes, ready to serve. | smokyfeast.com

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

I first made this pot roast for a chilly weekend at home with family. The aroma filled the house and everyone eagerly gathered around the table for seconds.

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
  • Potatoes: 2 lbs (900 g) Yukon Gold or Russet, peeled and cut into chunks
  • Unsalted butter: 4 tbsp
  • Whole milk: ½ cup (120 ml), plus more if needed
  • Salt: 1 tsp
  • Black pepper: ½ tsp
  • Chopped fresh parsley: optional, for garnish

Instructions

Prep the beef:
Pat beef chuck roast dry and season all sides with salt and pepper.
Sear the roast:
Heat olive oil in a large skillet over medium-high. Sear beef on all sides until browned (about 3 to 4 minutes each side). Transfer to slow cooker.
Add vegetables:
Place onion, garlic, carrots, and celery around the beef in the slow cooker.
Mix liquids:
Whisk together beef broth, tomato paste, Worcestershire sauce, thyme, rosemary, and bay leaves. Pour over beef and veggies.
Cook:
Cover slow cooker and cook on low for 8 hours, until beef is fork-tender.
Prepare mashed potatoes:
About 40 minutes before serving, place potatoes in a large pot, cover with cold water, add salt. Bring to a boil, simmer until tender (15 to 20 minutes). Drain and return to pot. Add butter and milk, mash until smooth and creamy. Season with salt and pepper; add milk as needed for consistency.
Rest and slice:
Remove roast from slow cooker, let rest 5 minutes. Discard bay leaves. Shred or slice beef.
Serve:
Serve beef and vegetables over mashed potatoes, drizzle with pan juices, garnish with fresh parsley if liked.
A close-up of a steaming, savory slow cooker pot roast with creamy mashed potatoes. Save
A close-up of a steaming, savory slow cooker pot roast with creamy mashed potatoes. | smokyfeast.com

This dish always reminds me of Sunday dinners with my grandparents. The beef is so tender it practically melts in your mouth, and everyone loves the creamy potatoes.

Required Tools

Slow cooker (6-quart or larger), large skillet, chefs knife, cutting board, large pot, potato masher or ricer, measuring cups and spoons

Allergen Information

Contains dairy (butter, milk). Worcestershire sauce may contain anchovies (fish). Gluten-free if using gluten-free broth and Worcestershire sauce. Always check ingredient labels for allergens.

Nutritional Information (per serving)

Calories: 520, Total Fat: 23 g, Carbohydrates: 36 g, Protein: 44 g

Hearty slow cooker pot roast on a plate, rich gravy pooling around vegetables and potatoes. Save
Hearty slow cooker pot roast on a plate, rich gravy pooling around vegetables and potatoes. | smokyfeast.com

This recipe brings warmth and nostalgia to any dinner table. Serve with a sprinkle of fresh parsley for a beautiful finish.

Kitchen Questions

How do I ensure the beef is tender?

Slow cooking on low heat for 8 hours allows the connective tissue to break down, resulting in a tender, flavorful roast.

Can I substitute the beef broth?

Yes, water or vegetable broth can be used, though beef broth adds richer depth to the dish's flavor.

What’s the best type of potato for creamy mashed potatoes?

Yukon Gold potatoes are ideal for buttery, creamy texture, but Russet potatoes also mash well.

How can I thicken the cooking liquid for gravy?

Remove some liquid, whisk with cornstarch, then stir back and cook on high for 10 minutes to thicken.

Is it necessary to sear the beef before slow cooking?

Searing locks in flavor and creates a deeper taste by caramelizing the meat's surface before slow cooking.

Slow Cooker Pot Roast

Hearty slow-cooked beef paired with creamy mashed potatoes and rich vegetable flavors.

Prep duration
20 min
Heat time
480 min
Complete duration
500 min
Created by Jackson Reed


Skill Level Easy

Heritage American

Output 6 Portions

Nutrition Labels No Gluten

What You'll Need

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

Method

Phase 01

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

Phase 02

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

Phase 03

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

Phase 04

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

Phase 05

Slow Cook: Cover and cook on low setting for 8 hours or until the beef is tender enough to shred with a fork.

Phase 06

Cook Potatoes: About 40 minutes before serving, place potatoes in a large pot, cover with cold water and add 1 tsp salt. Bring to a boil, reduce heat, and simmer until very tender, about 15 to 20 minutes.

Phase 07

Make Mashed Potatoes: Drain potatoes thoroughly and return to pot. Add butter and milk, then mash until smooth and creamy. Season with salt and black pepper to taste. Add additional milk if needed for desired consistency.

Phase 08

Finish the Roast: Remove the roast from the slow cooker and discard bay leaves. Let meat rest for 5 minutes, then shred or slice as preferred.

Phase 09

Serve: Plate the shredded beef and vegetables atop a bed of mashed potatoes. Drizzle with pan juices and garnish with chopped fresh parsley if desired.

Kitchen 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

Always review ingredients for potential allergens and seek professional medical guidance if unsure.
  • Contains dairy from butter and milk.
  • Worcestershire sauce may contain anchovies (fish).
  • Gluten-free only if gluten-free beef broth and Worcestershire sauce are used.

Nutrition Details (per portion)

Values shown are estimates only - please consult healthcare providers for specific advice.
  • Energy: 520
  • Fats: 23 g
  • Carbohydrates: 36 g
  • Proteins: 44 g