Description
Looking for a no-fuss, hearty dinner idea? This Slow Cooker Pot Roast with Onion Soup is your go-to comfort classic. Juicy chuck roast slow-cooked to perfection, bathed in rich onion gravy, and served over fluffy mashed potatoes—this easy recipe is everything you want in a cozy, satisfying meal. Perfect for an easy dinner, food ideas for the week, or even meal prepping, it’s packed with flavor and makes the best leftovers. A must-try for anyone who loves low-effort, big-reward cooking.
Ingredients
3 to 4 pounds chuck roast (well-marbled)
1 packet dry onion soup mix
1 large onion, thinly sliced
3 cloves garlic, minced
2 cups beef broth (low sodium preferred)
2 tablespoons Worcestershire sauce
1 tablespoon tomato paste (optional)
1 teaspoon black pepper
1/2 teaspoon salt
1 tablespoon olive oil (for searing)
Fresh thyme or parsley (for garnish, optional)
Mashed potatoes or egg noodles (for serving)
Instructions
1. Heat olive oil in a skillet over medium-high heat. Season the chuck roast with salt and pepper. Sear the roast on all sides for 3-4 minutes per side until browned.
2. Place the thinly sliced onions and minced garlic in the bottom of the slow cooker.
3. Lay the seared roast on top of the onion mixture. Sprinkle the dry onion soup mix over the roast, add Worcestershire sauce, tomato paste if using, and pour in the beef broth.
4. Cover and cook on LOW for 8 to 9 hours or HIGH for 4 to 5 hours, until the meat is fork-tender.
5. Remove the roast and shred with two forks. Stir the onions and cooking liquid to create a gravy.
6. Serve the shredded beef over mashed potatoes, noodles, or polenta, and spoon the gravy on top. Garnish with fresh herbs if desired.
Notes
Searing the roast before slow cooking enhances the flavor and adds depth to the final dish.
A cornstarch slurry (1 tbsp cornstarch + 1 tbsp cold water) thickens the gravy perfectly if it turns out too thin.
Leftovers reheat well and even taste better the next day, making this great for meal prep.
- Prep Time: 15 minutes
- Cook Time: 8–9 hours
- Category: Main Dish
- Method: Slow Cooker
- Cuisine: American
Nutrition
- Serving Size: ~6 oz with gravy
- Calories: 410
- Sugar: 2g
- Sodium: 720mg
- Fat: 24g
- Saturated Fat: 9g
- Unsaturated Fat: 13g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 1g
- Protein: 36g
- Cholesterol: 115mg
Keywords: easy dinner, slow cooker pot roast, beef dinner, crockpot meals, comfort food, one-pot meal