Onion Soup Mix Pot Roast (Printable version)

Tender beef and vegetables simmered with onion soup mix for a hearty slow cooker meal.

# What You Need:

→ Beef

01 - 3 lbs chuck roast, trimmed

→ Seasoning & Soup Mix

02 - 1 packet (1 oz) onion soup mix, gluten-free if needed
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 generously with black pepper and dried thyme if using.
02 - Place carrots, potatoes, celery, and onion in the bottom of the slow cooker, creating an even base.
03 - Lay the seasoned roast directly on top of the vegetables.
04 - In a mixing bowl, whisk together beef broth, onion soup mix, tomato paste, and Worcestershire sauce until well combined.
05 - Pour the liquid mixture over the roast and vegetables. Cover the slow cooker and cook on LOW for 8 hours, or on HIGH for 5 to 6 hours, until the roast is fork-tender and vegetables are fully cooked.
06 - Remove the roast and vegetables to a serving platter using tongs or a slotted spoon.
07 - Optional: Mix cornstarch with cold water to form a slurry. Stir the mixture into the slow cooker liquid. Cover and cook on HIGH for 5 to 10 minutes until the gravy reaches desired thickness.
08 - Slice or shred the roast as desired. Arrange on the platter with vegetables and spoon the gravy over the top.

# Expert Advice:

01 -
  • It requires just 15 minutes of prep work, then the slow cooker does the heavy lifting while you live your day.
  • The onion soup mix creates a savory depth that tastes like you've been simmering this for days, not hours.
  • Fork-tender beef and fall-apart vegetables mean you can skip the carving knife and just spoon everything onto a plate.
02 -
  • Don't skip drying the roast—any surface moisture will steam instead of developing flavor.
  • If you have time, give the roast a quick sear in a hot skillet before slow cooking; it creates a flavorful crust that deepens the entire dish.
03 -
  • Fill your slow cooker about three-quarters full—too much liquid and it steams instead of braises, too little and the vegetables dry out.
  • Resist the urge to lift the lid constantly; every time you do, you add 15-20 minutes to the cooking time as the heat escapes.
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