Slow Cooker Pot Roast

Featured in: Garden Comfort Meals

This comforting dish features a succulent beef chuck roast seasoned and seared before slow cooking with aromatic vegetables, herbs, and a rich broth. After hours of gentle cooking, the beef becomes fork-tender and is served atop creamy mashed potatoes made from Yukon Gold or Russet potatoes, blended with butter and milk for a silky texture. The slow cooking process infuses deep flavors, complemented by fragrant thyme, rosemary, and a touch of Worcestershire for richness. A classic American-style meal ideal for cozy gatherings.

Updated on Sat, 15 Nov 2025 15:57:00 GMT
Tender slow cooker pot roast with vegetables and creamy mashed potatoes, ready to serve. Save
Tender slow cooker pot roast with vegetables and creamy mashed potatoes, ready to serve. | basilhearth.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 on a chilly weekend when my family craved something warm and filling. The aroma filled our home and brought everyone to the kitchen before dinner was even served.

Ingredients

  • Beef chuck roast: 3 lbs (1.4 kg), perfect for slow cooking
  • Kosher salt: 1 tbsp, for seasoning
  • Black pepper: 1 tsp, freshly ground
  • 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, for depth
  • 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 chunked
  • 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
  • Garnish: Chopped fresh parsley (optional)

Instructions

Season and Sear Roast:
Pat beef chuck roast dry and season all sides with kosher salt and black pepper. Sear in olive oil over medium-high heat until browned on all sides. Transfer to slow cooker.
Add Vegetables:
Arrange onion, garlic, carrots, and celery around the beef in the slow cooker.
Prepare Cooking Liquid:
Whisk together beef broth, tomato paste, Worcestershire sauce, dried thyme, dried rosemary, and bay leaves. Pour over meat and vegetables.
Slow Cook:
Cover pot and cook on low setting for 8 hours until beef is very tender.
Make Mashed Potatoes:
About 40 minutes before serving, boil peeled and chunked potatoes with salt until soft. Drain, return potatoes to pot, and mash with butter and milk. Season with salt and pepper. Add extra milk for creaminess if desired.
Serve:
Let beef rest briefly after removing from slow cooker. Discard bay leaves. Slice or shred beef. Serve alongside vegetables over mashed potatoes. Drizzle with pan juices and garnish with parsley if desired.
A steaming bowl of comforting slow cooker pot roast with soft mashed potatoes and rich gravy. Save
A steaming bowl of comforting slow cooker pot roast with soft mashed potatoes and rich gravy. | basilhearth.com

This dish always reminds me of cozy Sundays where we gathered around the table, laughing and savoring each comforting bite.

Required Tools

Slow cooker, large skillet, cutting board and chefs knife, large pot, potato masher, measuring cups and spoons

Allergen Information

Contains dairy from butter and milk. Worcestershire sauce may contain anchovies. Gluten-Free option available if using certified gluten-free broth and sauce; always check ingredient labels for allergens.

Nutritional Information

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

Fork-tender pot roast, served with fluffy mashed potatoes—a classic American slow cooker dish. Save
Fork-tender pot roast, served with fluffy mashed potatoes—a classic American slow cooker dish. | basilhearth.com

This slow cooker pot roast creates a wonderful aroma that fills your home and guarantees satisfied smiles at the dinner table.

Recipe FAQs

What cut of beef is best for slow cooking?

Beef chuck roast is ideal for slow cooking due to its marbling and connective tissue, which break down into tender, flavorful meat over low heat.

How do I ensure the potatoes are creamy and smooth?

Use Yukon Gold or Russet potatoes, boil until very tender, then mash with butter and milk, adjusting liquid for desired creaminess.

Can I prepare the dish ahead of time?

Yes, the beef and vegetables can be slow-cooked earlier and refrigerated. Reheat gently before serving with freshly mashed potatoes.

How can I thicken the cooking liquid for gravy?

Remove half a cup of the liquid, whisk in cornstarch, then stir back into the cooker and simmer on high for 10 minutes until thickened.

What herbs enhance the flavor during slow cooking?

Dried thyme, rosemary, and bay leaves impart a fragrant, earthy aroma that complements the beef and vegetables perfectly.

Slow Cooker Pot Roast

Tender beef simmered with vegetables and served alongside creamy mashed potatoes.

Prep Time
20 minutes
Time to Cook
480 minutes
Total Duration
500 minutes
Recipe by Laura Bennett

Recipe Type Garden Comfort Meals

Skill Level Easy

Cuisine Type American

Makes 6 Portions

Dietary Details Without 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, plus more as needed
04 1 tsp salt
05 ½ tsp black pepper

Optional Garnish

01 Chopped fresh parsley

How To Make It

Step 01

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

Step 02

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

Step 03

Add Vegetables: Arrange sliced onion, minced garlic, carrots, and celery around the roast inside 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 evenly over the meat and vegetables.

Step 05

Slow Cook: Cover and cook on low heat for 8 hours until the beef is fork-tender.

Step 06

Boil Potatoes: About 40 minutes before serving, place potato chunks in a large pot with cold water and 1 teaspoon salt. Bring to a boil, then reduce heat to simmer until tender, approximately 15 to 20 minutes.

Step 07

Mash Potatoes: Drain cooked potatoes thoroughly. Return to pot and add butter and milk. Mash until smooth and creamy. Adjust seasoning with salt and black pepper. Add additional milk if necessary to reach desired consistency.

Step 08

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

Step 09

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

Tools Needed

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

Allergy Warnings

Review every ingredient for allergens and reach out to a medical expert if you're uncertain.
  • Contains dairy (butter, milk)
  • Worcestershire sauce may contain anchovies (fish)
  • Gluten-free if gluten-free broth and Worcestershire sauce are used

Nutrition information (serving size)

These nutritional details are for reference. They're not meant as medical guidance.
  • Caloric Value: 520
  • Fat content: 23 grams
  • Carbohydrates: 36 grams
  • Protein Amount: 44 grams