Onion Soup Mix Pot Roast (Print Version)

Slow-cooked pot roast infused with onion soup mix, tender beef, and hearty vegetables.

# What You'll Need:

→ Beef

01 - 3 lbs chuck roast, trimmed

→ Seasoning & Soup Mix

02 - 1 packet onion soup mix, approximately 1 oz
03 - 1 teaspoon black pepper
04 - 1 teaspoon dried thyme, optional

→ Vegetables

05 - 1 lb carrots, peeled and cut into 2-inch pieces
06 - 1 lb baby potatoes, halved
07 - 3 celery stalks, cut into 2-inch pieces
08 - 1 large onion, cut into wedges

→ Liquids

09 - 2 cups beef broth
10 - 2 tablespoons tomato paste
11 - 2 tablespoons Worcestershire sauce

→ For Gravy

12 - 2 tablespoons cornstarch
13 - 2 tablespoons cold water

# How to Make It:

01 - Pat the chuck roast dry with paper towels. Season with black pepper and dried thyme if using.
02 - Place carrots, potatoes, celery, and onion in the bottom of the slow cooker.
03 - Lay the seasoned roast on top of the vegetables in the slow cooker.
04 - In a mixing bowl, whisk together beef broth, onion soup mix, tomato paste, and Worcestershire sauce until combined.
05 - Pour the braising liquid over the roast and vegetables. Cover and cook on LOW for 8 hours, or on HIGH for 5 to 6 hours, until the roast is fork-tender and vegetables are cooked through.
06 - Transfer the roast and vegetables to a serving platter using tongs.
07 - In a small bowl, mix cornstarch with cold water until smooth. Stir the slurry into the cooking liquid in the slow cooker. Cover and cook on HIGH for 5 to 10 minutes until the sauce thickens.
08 - Slice or shred the roast and arrange on the platter with vegetables. Spoon the thickened gravy over the top and serve immediately.

# Expert Tips:

01 -
  • It's genuinely impossible to mess up—the slow cooker does the heavy lifting while you go about your day.
  • That onion soup mix creates a flavor depth that tastes like you've been simmering this for days, not hours.
  • One pot means minimal cleanup, which honestly might be the best part of any weeknight dinner.
02 -
  • Don't skip the drying step on the roast—moisture is the enemy of browning, and browning adds flavor even in a slow cooker.
  • If you have time, quickly sear the roast in a hot skillet with a little oil before adding it to the slow cooker; that crust makes the final dish taste richer and more intentional.
03 -
  • Cut your vegetables roughly the same size so they finish cooking together—uneven pieces mean some turn to mush while others stay firm.
  • Make this the night before if you can; the flavors actually deepen as everything sits together, and reheating is effortless.
Go Back