With only 3 ingredients (plus a little water) this recipe for Crock-Pot Pot Roast with Onions is a fantastic dump-and-go recipe that can be cooked all day!

Slow Cooker Pot Roast with Onions
There are some days that you just need something EASY that you can throw in your slow cooker in the morning, leave for the better part of the day, and come back home to the main dish of your dinner ready to go.
This is a great recipe for working moms and dads because you can have this pot roast put in the slow cooker in just a few minutes in the morning (you can even slice your onions the night before when you are cleaning up the kitchen after dinner) and let this baby cook while you are at work.
Now, I am a WAHM (work at home mom) myself, but that doesn’t mean that I don’t have busy days where I am not going to be home all day. So when I have a errand day, this easy 3-ingredient pot roast goes in the slow cooker and I can come home to a home that smells AMAZING and dinner is pretty close to done.
All I have to do is whip up some sort of side dish (a fresh salad or maybe some steamed veggies) and dinner is on the table.
Equipment Needed For Crock-Pot Pot Roast with Onions Recipe:
- 5 Quart, 5.5 Quart, 6 Quart, 6.5 Quart Or 7 Quart Slow Cooker
- Knife
- Cutting Board
- Liquid Measuring Cup

Frequently Asked Questions
Feel free to add some other vegetables to this easy recipe. Adding carrots, celery, potatoes, or even parsnips is fantastic. Just cut them into bite sized pieces and pop them into the slow cooker with the rest of the ingredients.
Making your own homemade onion soup mix is pretty easy. I like this recipe from Food.com because 1 recipe is the equivalent of one packet of store-bought onion soup mix.
The best cuts of beef to use for a pot roast in the slow cooker are:
– Chuck Roast
– Chuck Shoulder Steak
– Boneless Chuck Roast
– Chuck Shoulder Pot Roast
– Chuck Seven-Bone Pot Roast
– Beef Chuck Arm Roast
– Beef Brisket
– Rump Roast
– Bottom Round Roast
These nice cuts of beef all come out tender and moist and are prefect for the slow and low cooking method found in slow cooking.

Special Diets
Low Calorie | Low Carb | Low Fat | Low Sodium | Low Sugar
More Great Beef Crockpot Recipes You Must Try!
Crock-Pot Barbacoa Beef
This versatile recipe for Slow Cooker Barbacoa Beef comes out tender and full of flavor. The perfect beef to add to your favorite Mexican recipes!
Crock-Pot Cube Steak
Serve this easy Slow Cooker Cube Steak over rice or noodles. Just two ingredients! Strips of cube steak are simmered in cream of mushroom soup until tender.Â
Crock-Pot Steak & Cherry Chili
Warm up with a bowl of chili that has the heartiness of steak and a touch of sweetness with dried cherries. Slow Cooker Steak & Cherry Chili is kid friendly!
Crock-Pot Beef Brisket
With just a few ingredients this recipe for Slow Cooker Beef Brisket yields a tender brisket full of flavor and made super easy in your slow cooker!
Recipe Collections:
- 5 Quart Crock-Pot Recipes
- 5.5 Quart Crock-Pot Recipes
- 6 Quart Crock-Pot Recipes
- 6.5 Quart Crock-Pot Recipes
- 7 Quart Crock-Pot Recipes
- Beef Crock-Pot Recipes
- Entrée Recipes

Crock-Pot Pot Roast with Onions Recipe
Ingredients
- 3 Pounds Beef Pot Roast
- 2 Medium Yellow Onions (Peeled And Sliced)
- 4 Cups Water
- 1 Packet Dry Onion Soup Mix
Instructions
- Add all ingredients to a 5 quart or larger slow cooker.
- Cover and cook on LOW for 8 to 10 hours or until the roast is tender and is starting to fall apart.
- Slice or chunk up the pot roast and serve it with the cooked onions.
- Enjoy!
Nutrition

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