Slow Cooker Pot Roast

Featured in: Cozy Comfort Meals

This comforting dish features a tender beef chuck roast slow-cooked alongside aromatic vegetables like onions, garlic, carrots, and celery. The rich blend of thyme, rosemary, and bay leaves infuses the broth, creating a savory gravy that enhances each bite. Paired with smooth, creamy mashed potatoes made from Yukon Gold or Russet potatoes, butter, and milk, this meal is perfect for a satisfying dinner. Garnished with fresh parsley, it offers a cozy, flavorful experience with minimal effort.

Updated on Sat, 15 Nov 2025 09:07:00 GMT
Tender Slow Cooker Pot Roast with vegetables and rich gravy served atop creamy mashed potatoes. Save
Tender Slow Cooker Pot Roast with vegetables and rich gravy served atop creamy mashed potatoes. | flavza.com

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

My family always requests this hearty pot roast for Sunday dinners. After trying different versions, slow cooking creates the most melt-in-your-mouth texture and the mashed potatoes make the meal extra cozy.

Ingredients

  • Beef chuck roast: 3 lbs (1.4 kg), trimmed if desired
  • 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 stalks: 3, 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 (for potatoes): 1 tsp
  • Black pepper (for potatoes): ½ tsp
  • Chopped fresh parsley (optional): for garnish

Instructions

Prep and Sear:
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 to 4 minutes per side). Transfer to the slow cooker.
Vegetables and Sauce:
Add onion, garlic, carrots, and celery around the roast in the slow cooker. 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.
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 to 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.
Finish:
Remove the roast from the slow cooker and let rest for 5 minutes. Discard bay leaves. Shred or slice the beef. Serve pot roast and vegetables over mashed potatoes. Drizzle with pan juices and garnish with fresh parsley if desired.
A close-up of a plated, delicious Slow Cooker Pot Roast with hearty vegetables and potatoes. Pin it
A close-up of a plated, delicious Slow Cooker Pot Roast with hearty vegetables and potatoes. | flavza.com

Pot roast with mashed potatoes has always brought our family together on cold evenings. The aroma fills the house and everyone gathers quickly for a warm, satisfying meal.

Required Tools

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

Allergen Information

Contains dairy from butter and milk. Worcestershire sauce may have fish (anchovies). Always verify ingredient labels for allergens, and use gluten-free broth and sauce if needed.

Nutritional Information (per serving)

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

Savor the comforting aroma of a classic Slow Cooker Pot Roast meal, perfect for any family dinner. Pin it
Savor the comforting aroma of a classic Slow Cooker Pot Roast meal, perfect for any family dinner. | flavza.com

This meal is perfect for gatherings or leftovers. The slow cooker makes prep simple so you can relax and enjoy every bite with family.

Frequently Asked Questions

How long should the beef roast cook for tenderness?

Cook the beef on low heat in the slow cooker for about 8 hours until it becomes fork-tender and easy to shred.

Can I substitute any vegetables in the dish?

Yes, carrots, celery, and onions provide classic flavor, but root vegetables like parsnips or turnips can be added for variation.

What type of potatoes work best for the mashed portion?

Yukon Gold potatoes offer a buttery texture, but Russet potatoes also yield creamy, fluffy mashed potatoes.

How can I thicken the gravy from the slow cooker?

Remove half a cup of cooking liquid, whisk it with cornstarch, then stir back and cook on high for 10 minutes to thicken.

Is this dish suitable for gluten-free diets?

Yes, using gluten-free beef broth and Worcestershire sauce makes the dish safe for gluten-free needs.

Slow Cooker Pot Roast

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

Prep Time
20 Minutes
Cook Time
480 Minutes
Total Time
500 Minutes

Category: Cozy Comfort Meals

Difficulty: Easy

Cuisine: American

Yield: 6 servings

Dietary: Gluten-Free

Ingredients

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

Instructions

Step 01

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

Step 02

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

Step 03

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

Step 04

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

Step 05

Slow Cook: Cover and cook on low for 8 hours until beef is tender and easily shredded with a fork.

Step 06

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

Step 07

Mash Potatoes: Drain potatoes thoroughly and return to pot. Add unsalted butter and whole milk; mash until creamy and smooth. Season with salt and black pepper, adjusting milk as needed for desired consistency.

Step 08

Rest and Slice Roast: Remove roast from slow cooker, discard bay leaves, and let rest 5 minutes. Shred or slice beef as preferred.

Step 09

Serve: Place mashed potatoes on plates, top with pot roast and vegetables, drizzle with pan juices, and garnish with chopped fresh parsley if desired.

Tools You'll Need

  • 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 Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy (butter, milk).
  • Worcestershire sauce may contain anchovies (fish).
  • Gluten-free if using gluten-free broth and Worcestershire sauce.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 520
  • Total Fat: 23 g
  • Total Carbohydrate: 36 g
  • Protein: 44 g