Slow Cooker Pot Roast

Featured in: Comfort Plates

This dish features a tender beef chuck roast slow-cooked alongside aromatic vegetables like onions, garlic, carrots, and celery. Infused with herbs such as thyme and rosemary, and enriched with beef broth and tomato paste, it yields deep and savory flavors. The roast is seared first for extra depth, then cooked for hours until fork-tender. Creamy mashed potatoes, made from Yukon Gold or Russet potatoes with butter and milk, provide a smooth and rich complement. Garnish with fresh parsley for a pop of freshness before serving.

Updated on Sun, 09 Nov 2025 10:34:00 GMT
Mouthwatering slow cooker pot roast with vegetables and creamy mashed potatoes, garnished beautifully.  Save
Mouthwatering slow cooker pot roast with vegetables and creamy mashed potatoes, garnished beautifully. | tastychuck.com

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

I've made this slow cooker pot roast for family dinners on countless occasions and it never fails to impress. It brings back warm memories of cozy Sunday evenings, filling the house with incredible aromas while I tend to other things.

Ingredients

  • Beef chuck roast: 3 lbs (1.4 kg), offers tender, succulent results after slow-cooking
  • Kosher salt: 1 tbsp, enhances flavor
  • Black pepper: 1 tsp, freshly ground
  • Olive oil: 2 tbsp, for searing beef
  • 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, adds depth to the gravy
  • Worcestershire sauce: 1 tbsp, gluten-free if needed
  • Dried thyme: 1 tsp, earthy flavor
  • Dried rosemary: 1 tsp, herbal note
  • Bay leaves: 2, for subtle aroma
  • Yukon Gold or Russet potatoes: 2 lbs (900 g), peeled and cut into chunks
  • Unsalted butter: 4 tbsp, for creamy mashed potatoes
  • Whole milk: ½ cup (120 ml), plus more as needed
  • Salt: 1 tsp, for boiling potatoes
  • Black pepper: ½ tsp, for seasoning potatoes
  • Optional garnish: Chopped fresh parsley

Instructions

Season and Sear Beef:
Pat the beef chuck roast dry and season all sides with salt and pepper. In a large skillet, heat olive oil over medium-high heat. Sear the roast on all sides until browned (about 3 minutes per side). Transfer to the slow cooker.
Add Vegetables:
Add onion, garlic, carrots, and celery around the roast in the slow cooker.
Mix and Add Broth:
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.
Prep 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).
Mash and Season Potatoes:
Drain 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 for desired consistency.
Finish Roast:
Remove roast from the slow cooker and let rest for 5 minutes. Discard bay leaves. Shred or slice the beef.
Serve:
Serve pot roast and vegetables over the mashed potatoes. Drizzle with pan juices and garnish with parsley if desired.
Tender slow cooker pot roast with rich gravy and buttery mashed potatoes, perfect for dinner.  Save
Tender slow cooker pot roast with rich gravy and buttery mashed potatoes, perfect for dinner. | tastychuck.com

Every time I made this pot roast, my family gathered around the table for seconds and lively conversation. It's one of our favorite dishes for making memories together.

Serving Suggestions

This hearty pot roast pairs well with a green salad or roasted Brussels sprouts. Leftovers make delicious sandwiches or can be reheated for a fuss-free weeknight meal.

Make Ahead and Storage

You can prepare the roast the night before and store ingredients in the slow cooker insert in the fridge. Cook as directed the next day. Leftovers will keep in an airtight container in the fridge for up to 4 days, or freeze for up to 2 months.

Nutrition & Allergen Info

Per serving: 520 calories, 23 g fat, 36 g carbohydrates, 44 g protein. Contains dairy (butter, milk) and possibly fish (Worcestershire sauce). Always check ingredient labels for allergens.

Delicious slow cooker pot roast served over fluffy mashed potatoes, ideal for family meals. Save
Delicious slow cooker pot roast served over fluffy mashed potatoes, ideal for family meals. | tastychuck.com

Enjoy this classic pot roast as a comforting centerpiece anytime you crave a warm, hearty meal. It's a dish worth making again and again.

Recipe Guide

How do I ensure the beef remains tender after slow cooking?

Searing the beef before slow cooking seals in juices, and cooking it low and slow allows the connective tissues to break down, making the meat tender and flavorful.

Can I substitute other vegetables in this dish?

Yes, vegetables like parsnips or turnips work well alongside carrots and celery, adding variety to the flavor and texture.

What type of potatoes work best for creamy mashed potatoes?

Yukon Gold potatoes offer a naturally buttery texture, but Russet potatoes can also create smooth and fluffy mashed potatoes when properly cooked and mashed.

How can I thicken the gravy if desired?

Remove some cooking liquid, whisk in cornstarch, then stir it back and cook on high for 10 minutes to achieve a thicker gravy consistency.

Is it possible to add wine to enhance flavors?

Yes, substituting half a cup of the broth with red wine, such as Cabernet Sauvignon, adds rich and complex flavors to the dish.

Slow Cooker Pot Roast

Comforting slow-cooked beef with vegetables and creamy mashed potatoes in a hearty home-style dish.

Prep duration
20 min
Heat time
480 min
Full duration
500 min
Created by Chuck Harrison


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 beef broth (gluten-free if required)
10 2 tbsp tomato paste
11 1 tbsp Worcestershire sauce (gluten-free if needed)
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 chopped
02 4 tbsp unsalted butter
03 ½ cup whole milk (120 ml), plus additional as needed
04 1 tsp salt
05 ½ tsp black pepper

Optional Garnish

01 Chopped fresh parsley

Method

Phase 01

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

Phase 02

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

Phase 03

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

Phase 04

Prepare Cooking Liquid: In a mixing 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 the slow cooker and cook on low setting for 8 hours, until the beef is fork-tender.

Phase 06

Cook Potatoes: Approximately 40 minutes before the beef finishes, place peeled and chopped potatoes in a large pot. Cover with cold water, add 1 tsp salt, bring to a boil, then reduce heat and simmer until very tender, about 15 to 20 minutes.

Phase 07

Mash Potatoes: Drain potatoes thoroughly and return them to the pot. Add butter and whole milk, mashing until smooth and creamy. Season with salt and black pepper to taste. Adjust milk quantity for preferred consistency.

Phase 08

Rest and Slice Beef: Remove the roast from the slow cooker and let it rest for 5 minutes. Discard bay leaves, then shred or slice the beef as preferred.

Phase 09

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

Kitchen tools

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

Allergy alerts

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 if gluten-free broth and Worcestershire sauce are used.

Nutrition breakdown (per portion)

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