Slow Cooker 4-Ingredient Onion Soup Pot Roast
This slow cooker 4-ingredient onion soup pot roast is the kind of classic comfort food that tastes like it came straight from Grandma’s kitchen. Made with just a beef chuck roast, onion soup mix, onions, and beef broth, this easy crockpot recipe delivers fall-apart tender beef and a rich, savory onion gravy with almost no prep.
It’s the perfect dump-and-go slow cooker dinner for busy weekdays. Simply add everything to the crockpot in the morning, and by dinnertime you’ll come home to juicy, melt-in-your-mouth pot roast that smells incredible and tastes even better.
Why You’ll Love This Recipe:
Only 4 ingredients simple, budget-friendly, and pantry-approved
Ultra-tender beef slow cooking breaks down the chuck roast perfectly
Hands-off cooking ideal for busy families and meal prep
Rich homemade gravy no packets or canned gravy needed
Comfort food classic perfect for Sunday dinners or cold evenings
Servings: 6
Ingredients:
3 to 3½ pounds beef chuck roast
2 (1-ounce) packets dry onion soup mix
2 large yellow onions, thinly sliced
2 cups beef broth (low-sodium recommended)
Instructions:
Slice the onions into thin half-moons and spread them evenly across the bottom of a 6-quart slow cooker. This creates a flavorful base and helps form the gravy.
Pat the chuck roast dry with paper towels and place it directly on top of the onions.
Sprinkle the onion soup mix evenly over the roast, gently pressing it into the meat so it adheres well.
Pour the beef broth around the sides of the roast, avoiding washing the seasoning off the top.
Cover and cook on LOW for 8–10 hours, until the beef is extremely tender and pulls apart easily with a fork.
Shred the roast into large chunks directly in the slow cooker and stir it into the onions and rich gravy.
Serving Suggestions:
Serve this slow cooker pot roast over:
Creamy mashed potatoes
Buttered egg noodles
Steamed rice or fluffy rice pilaf
Add a simple vegetable like green beans, roasted carrots, or a crisp salad for balance. Don’t forget crusty bread to soak up that irresistible onion gravy.
Tips, Variations & Storage:
For deeper flavor, you may sear the roast before slow cooking (optional).
To thicken the gravy, stir in a cornstarch slurry and cook on HIGH for 10–15 minutes.
Swap one yellow onion for a sweet onion for extra depth.
Leftovers keep well for up to 3 days and taste even better the next day.
Use leftovers for open-faced sandwiches, baked potatoes, or noodles.
