Slow Cooker Pot Roast

Featured in: Comfort Family Dinners

This classic American dish features a slow-cooked beef chuck roast seasoned with aromatic herbs, garlic, and vegetables. After searing, the roast gently simmers for hours, absorbing rich flavors and becoming fork-tender. Paired with creamy Yukon Gold mashed potatoes, enriched with butter and milk, it offers a comforting, hearty meal perfect for family gatherings. Garnished with fresh parsley and delicious pan juices, this dish balances savory and smooth textures effortlessly.

Updated on Sat, 15 Nov 2025 08:53:00 GMT
Tender slow cooker pot roast with vegetables and creamy mashed potatoes, a hearty family meal. Save to Pinterest
Tender slow cooker pot roast with vegetables and creamy mashed potatoes, a hearty family meal. | frostkettle.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 the first time I made pot roast in the slow cooker. Filling my kitchen with that savory aroma all day always made dinner feel extra special & cozy.

Ingredients

  • Beef chuck roast: 3 lbs (1.4 kg), well-marbled for tenderness
  • 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 (for potatoes)
  • Black pepper: ½ tsp (for potatoes)
  • Optional garnish: Chopped fresh parsley

Instructions

Prepare the beef:
Pat the 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 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.
Mix liquids:
Whisk together beef broth, tomato paste, Worcestershire sauce, thyme, rosemary, and bay leaves in a bowl. Pour over the roast and vegetables.
Slow cook:
Cover and cook on low for 8 hours until beef is fork-tender.
Make mashed potatoes:
About 40 minutes before serving, place potatoes in a large pot, cover with cold water, and add 1 tsp salt. Bring to boil, simmer until very tender (15 & 20 minutes), drain. Add butter and milk, mash until smooth and creamy. Season with salt and pepper. Add more milk if needed.
Finish and serve:
Remove roast, let rest 5 minutes. Discard bay leaves. Shred or slice beef. Serve roast and veggies on a bed of mashed potatoes, drizzle with juices, and garnish with parsley if desired.
A close-up of a steaming bowl of slow cooker pot roast, rich gravy, and fluffy mashed potatoes. Save to Pinterest
A close-up of a steaming bowl of slow cooker pot roast, rich gravy, and fluffy mashed potatoes. | frostkettle.com

This pot roast reminds me of Sunday dinners at my grandparents house. Everyone would crowd around the table & there was never a bite left!

Required Tools

You will need a slow cooker (6-quart or larger), a large skillet, a chefs knife, a cutting board, a large pot, and a potato masher or ricer.

Allergen Information

This recipe contains dairy from the butter and milk. Worcestershire sauce may contain anchovies (fish). For gluten-free, use gluten-free broth and Worcestershire. Always verify labels.

Nutritional Information

Each serving provides roughly 520 calories, 23 grams of fat, 36 grams of carbohydrates, and 44 grams of protein.

Fork-tender pot roast, perfectly seasoned, served over creamy mashed potatoes, a comforting classic. Save to Pinterest
Fork-tender pot roast, perfectly seasoned, served over creamy mashed potatoes, a comforting classic. | frostkettle.com

Enjoy this heartwarming meal with family or friends. Pot roast and creamy potatoes are always a crowd-pleaser.

Recipe Questions & Answers

What cut of beef is best for slow cooking?

Beef chuck roast is ideal due to its marbling and connective tissue that break down during slow cooking, creating tender, flavorful meat.

Can I use different potatoes for mashing?

Yes, Yukon Gold potatoes give a creamy, buttery texture, while Russet potatoes yield a fluffier mash; both work well.

How do I thicken the gravy from the slow cooker?

Remove some cooking liquid, whisk in cornstarch, and simmer on high for 10 minutes to achieve a thicker consistency.

Are there substitutions for beef broth to vary flavor?

Red wine can replace part of the broth for a deeper, richer taste that complements the beef and vegetables.

How long should the beef rest after cooking?

Letting the roast rest for about 5 minutes allows juices to redistribute, ensuring moist and tender slices.

Slow Cooker Pot Roast

Tender beef slow-cooked with herbs and veggies, paired with creamy mashed potatoes and savory pan juices.

Prep Duration
20 minutes
Time to Cook
480 minutes
Overall Time
500 minutes
Created by Nora Whitman


Skill Level Easy

Cuisine American

Makes 6 Serving Size

Dietary Information Wheat-Free

What You 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

How-To Steps

Step 01

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

Step 02

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

Step 03

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

Step 04

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

Step 05

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

Step 06

Cook Potatoes: Approximately 40 minutes before serving, place peeled and chunked potatoes in a large pot. Cover with cold water, add 1 tsp salt, and bring to a boil. Reduce heat and simmer for 15 to 20 minutes until potatoes are very tender. Drain thoroughly.

Step 07

Mash Potatoes: Return drained potatoes 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 if needed to achieve desired consistency.

Step 08

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

Step 09

Plate and Garnish: Serve the shredded beef and vegetables over mashed potatoes. Drizzle with pan juices and garnish with chopped fresh parsley if desired.

Tools You'll Need

  • 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 Info

Review every ingredient for allergens. Ask a healthcare professional if unsure.
  • Contains dairy: butter and milk
  • Worcestershire sauce may contain anchovies (fish)
  • Gluten-free options require gluten-free broth and Worcestershire sauce

Nutrition Details (Each Serving)

Given for informational purposes, this isn't medical advice.
  • Energy Value: 520
  • Fats: 23 g
  • Carbohydrates: 36 g
  • Proteins: 44 g