Slow Cooker Pot Roast

Featured in: Rustic Comfort Dishes

This dish features a tender beef chuck roast slowly cooked alongside aromatic vegetables like onions, garlic, carrots, and celery to develop rich, deep flavors. The roast is seasoned with herbs such as thyme and rosemary, creating a comforting and savory profile. Creamy mashed potatoes made with butter and milk provide a smooth, buttery complement. The slow cooking process ensures melt-in-your-mouth meat and a luscious gravy formed from the cooking liquids. Garnished with fresh parsley, this meal is perfect for an easy, rewarding dinner.

Updated on Sat, 15 Nov 2025 10:07:00 GMT
Tender, fall-apart Slow Cooker Pot Roast with vibrant vegetables and creamy mashed potatoes. Pin It
Tender, fall-apart Slow Cooker Pot Roast with vibrant vegetables and creamy mashed potatoes. | juniperbite.com

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

I remember the first time I made this pot roast for my family on a chilly weekend. The aroma filled the house all day, and by dinner time, everyone gathered around the table with eager anticipation. There's something truly special about sharing a meal that's cooked low and slow, bringing comfort and togetherness.

Ingredients

  • Beef chuck roast: 3 lbs (1.4 kg), for tender, flavorful meat
  • Kosher salt: 1 tbsp, to season beef
  • Black pepper: 1 tsp, for seasoning
  • Olive oil: 2 tbsp, for searing
  • 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 as needed
  • Salt: 1 tsp
  • Black pepper: ½ tsp
  • Optional garnish: Chopped fresh parsley

Instructions

Season the beef:
Pat the beef chuck roast dry and season all sides with salt and pepper.
Sear the roast:
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.
Mix and pour 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.
Make mashed potatoes:
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.
Rest and shred beef:
Remove the 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 a bed of mashed potatoes. Drizzle with pan juices and garnish with fresh parsley if desired.
A close-up of a flavorful Slow Cooker Pot Roast with rich gravy served over fluffy potatoes. Pin It
A close-up of a flavorful Slow Cooker Pot Roast with rich gravy served over fluffy potatoes. | juniperbite.com

Sharing this pot roast with mashed potatoes has become a tradition during family gatherings. The warmth and aroma always bring back fond memories of laughter around the dinner table.

Required Tools

You'll need a slow cooker (6-quart or larger), large skillet, chef's knife and cutting board, large pot, potato masher or ricer, and measuring cups and spoons.

Nutritional Information

Per serving: 520 calories, 23 g total fat, 36 g carbohydrates, 44 g protein.

Notes

For a thicker gravy, whisk 1 tbsp cornstarch with ½ cup cooking liquid and return it to the slow cooker for 10 minutes on high. Yukon Gold potatoes create creamy mashed potatoes, while red wine can deepen the flavor of the roast.

Hearty American dinner: comforting Slow Cooker Pot Roast boasting succulent beef and buttery mashed potatoes. Pin It
Hearty American dinner: comforting Slow Cooker Pot Roast boasting succulent beef and buttery mashed potatoes. | juniperbite.com

This pot roast is sure to become a staple in your comfort food rotation. Enjoy every tender bite!

Questions About This Recipe

How long should I cook the beef roast?

Cook the roast on low heat for 8 hours until the beef is fork-tender and full of flavor.

What vegetables complement the pot roast?

Onions, garlic, carrots, and celery add aromatic depth and natural sweetness when slow-cooked with the beef.

Can I make the mashed potatoes creamier?

Yes, adding extra milk or butter while mashing will create a smoother, creamier texture.

How can I thicken the gravy?

Remove ½ cup of cooking liquid, whisk with cornstarch, then stir back into the slow cooker and cook on high for 10 minutes.

What wine pairs well with this dish?

Abold red wine like Cabernet Sauvignon enhances the rich flavors of the beef and vegetables.

Slow Cooker Pot Roast

Hearty beef cooked slowly with veggies, paired with creamy mashed potatoes for a satisfying dish.

Prep Time
20 minutes
Cook Time
480 minutes
Total Duration
500 minutes
Juniper Bite Chloe Fischer


Skill Level Easy

Cuisine American

Serves 6 Number of Servings

Dietary Info Wheat-Free

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

Garnish

01 Chopped fresh parsley (optional)

Directions

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. Brown the roast on all sides, about 3-4 minutes per side, then transfer to the slow cooker.

Step 03

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

Step 04

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

Step 05

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

Step 06

Cook the mashed potatoes: About 40 minutes before serving, place potatoes in a large pot with cold water and 1 tsp salt. Bring to a boil, reduce heat, and simmer for 15-20 minutes until tender. Drain, return potatoes to pot, add butter and milk, then mash until smooth. Season to taste with salt and pepper, adding more milk if needed.

Step 07

Rest and shred the beef: Remove the roast from the slow cooker and discard bay leaves. Let rest for 5 minutes, then shred or slice the beef.

Step 08

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

Kitchen Gear Needed

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

Allergen Details

Always check what goes in for allergens, and talk to your doctor if you’re unsure.
  • Contains dairy (butter, milk)
  • Worcestershire sauce may contain anchovies (fish)
  • Gluten-free only if using gluten-free broth and Worcestershire sauce

Nutrition Information (each serving)

This info’s just a guide, not medical advice.
  • Calories: 520
  • Fats: 23 g
  • Carbohydrates: 36 g
  • Proteins: 44 g