Servings: 6 big sandwiches
Cook Time: 8 hours on low, or 4–5 hours on high
Hey there!
If you’ve got a busy day but still want to end it with something seriously comforting and hearty, these Crockpot Roast Beef Sandwiches are the move. Just toss everything in the slow cooker and let it do its thing. By dinner, you’ve got super tender beef, full of flavor, ready to pile high on toasted buns. It’s juicy, cozy, and just the kind of meal that makes you go, “Yesss. This hits the spot.”

❤️ Why I Love This Recipe
This one’s close to home for me. Growing up, roast beef sandwiches were our go-to Sunday meal. My mom would throw everything in the Crockpot before church, and by the time we got home, the house smelled like a dream. These sandwiches have that same “wrap-you-in-a-hug” feel — but with way less effort.
- You don’t need to babysit anything — just set it and forget it.
- The beef turns out melt-in-your-mouth tender.
- Leftovers? Even better the next day.
- Perfect for casual dinners, game nights, or feeding a crowd.
🧂 What You’ll Need
- 3–4 lb chuck roast, trimmed
- 1 packet dry Italian dressing mix
- 1 packet au jus gravy mix
- 1 tbsp Worcestershire sauce
- 1 cup beef broth
- 4 cloves garlic, minced
- 1 small yellow onion, thinly sliced
- 6 hoagie rolls or sandwich buns
- 6 slices provolone cheese
- Optional: banana peppers or pickled jalapeños for topping

🧠 Why This Recipe Works (Quick Science)
- Chuck roast = flavor city. It has a lot of connective tissue that breaks down over long, slow cooking, making it super tender.
- Dry mixes bring the umami. The seasoning packets add concentrated flavor without needing a bunch of ingredients.
- Worcestershire and broth = juicy and savory. Adds depth and keeps the meat moist.
- Low and slow heat = fall-apart beef. No dry meat here.
🛠️ Tools You’ll Need
- Slow cooker (Crockpot)
- Cutting board & knife
- Small mixing bowl (optional)
- Tongs or forks (for shredding)
- Baking sheet (for toasting rolls)
- Aluminum foil (optional, for melting cheese)
🔁 Substitutions and Variations
- Beef: Try pork shoulder or chicken thighs for a different twist.
- Rolls: Sub with brioche buns or even Hawaiian rolls for sliders.
- Cheese: Mozzarella, Swiss, or pepper jack are great too.
- Toppings: Add sautéed mushrooms or onions for extra goodness.
⏳ Make-Ahead Tips
- Prep everything the night before — place it all in the Crockpot insert and refrigerate. Just pop it in and turn it on in the morning.
- You can shred the meat a day ahead and reheat with a splash of broth.
👩🍳 How to Make It
Step 1: Season and Load the Crockpot
Rub the chuck roast all over with the dry Italian dressing mix and au jus mix. Then place it into the Crockpot. Add the minced garlic, sliced onions, Worcestershire sauce, and beef broth. That’s it — lid on and let it do its thing!

Step 2: Cook Low and Slow
Cover and cook on low for 8 hours or high for 4–5 hours until the meat shreds easily.
Step 3: Shred the Beef
Remove the roast, shred it with two forks, then return it to the Crockpot to soak up all those juices.

Step 4: Toast the Rolls
Slice your hoagie rolls and toast them on a baking sheet at 375°F for 5 minutes.

Step 5: Assemble the Sandwiches
Pile on the shredded beef, top with provolone cheese, and melt it under the broiler if you like.

🧊 Leftovers & Storage
- Fridge: Store leftover beef (with juices) in an airtight container for up to 4 days.
- Freezer: Freeze in a zip-top bag (with some juice) for up to 2 months.
- Reheat: Warm in a saucepan with a splash of broth or in the microwave.
💡 Pro Tips
- Don’t skip the seeping time. Let the shredded beef soak in the juices after shredding for 10–15 mins.
- Use a slotted spoon. Keeps your buns from getting soggy.
- Double up the broth. If you want more au jus for dipping, add extra broth before cooking.
- Toasting is key. Toasted rolls hold up better and give that perfect crunch.
- Cheese it up. Broil the sandwiches with cheese on top for 2 mins to get that melted goodness.
❌ Common Mistakes
- Undercooking: If it doesn’t shred easily, it needs more time.
- Too much liquid: Don’t drown it — 1 cup broth is plenty with the natural juices.
- Skipping the toast: Your rolls will go soggy fast if not toasted.
🥗 What to Serve With
- Classic potato chips or fries
- A crisp coleslaw or cucumber salad
- Pickles or pickled veggies
- Sweet corn on the cob
- A cold beer or iced tea
🍽️ Meal Plan Ideas
- Monday lunch: Use leftover beef on a salad with ranch and croutons.
- Tuesday dinner: Make sliders with Hawaiian rolls and serve with chips.
- Freezer stash: Freeze extra portions for quick meals down the road.
❓FAQ
Can I use frozen beef?
Yes, just thaw it first for safety and best texture.
What cut of beef is best?
Chuck roast is perfect — affordable, flavorful, and gets super tender.
Do I need both seasoning packets?
Yes, they work together to give depth and saltiness. Skip one, and it might taste flat.
Can I make it spicy?
Totally. Add red pepper flakes or top with pickled jalapeños.
👋 Let’s Wrap It Up
Alright, that’s the magic of these Crockpot Roast Beef Sandwiches! Super easy, crazy flavorful, and just so satisfying. Whether you’re feeding a crowd or meal prepping for the week, this one’s a total win. Try it, and let me know how it went in the comments — I’m always here to answer questions or help you troubleshoot!
Happy cooking! 🥪✨