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Slow Cooker London Broil

Featuring tender roast beef, potatoes, carrots, and a flavorful broth, my slow cooker London broil is one of the best ways to whip up this classic and comforting main dish!

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ready to serve london broil with potatoes and carrots

If you’re familiar with the blog, you know how much I love my air fryer for quick and easy cooking.

And while I seriously can’t get enough of my favorite kitchen appliance, sometimes I like to break out my slow cooker instead.

It’s perfect for busy days when I know I won’t have a lot of time to spend in the kitchen.

I’ve already shared dishes like crockpot ham and cabbage soup, tri-tip in the crockpot, this sausage and green bean casserole, stuffing and chicken in the crock pot, and of course my crockpot mac and cheese recipe.

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These are all wonderful main dish options, just like today’s recipe for crockpot London broil with vegetables!

Made with tender London broil roast and two types of veggies, and cooked in a beef stock broth, slow cooker London broil with potatoes and carrots is hearty and comforting.

Your kitchen will fill with appetizing aromas as it simmers — there isn’t much better than coming home to a fully cooked meal!

To be enjoyed with or without buttery noodles. 

Here’s what I’m going to teach you in this post:

  • The ingredients and equipment you’ll need to make this London broil crock pot recipe. 
  • How to make slow cooker London broil with potatoes and carrots at home.
  • Answers to commonly asked questions that may come up when you make my crockpot London broil with vegetables yourself.

Plug in the crockpot, gather your ingredients, and join me as I teach you how to make my London broil crock pot recipe!

It’s a dish that I make often — my family can’t get enough of it!

ingredients to make crockpot london broil

How to Make Slow Cooker London Broil

STEP ONE: Heat a bit of olive oil in a large skillet over medium-high heat. Season the beef with salt and pepper and sear for 1-2 minutes on each side. This step is optional, but searing the meat will help bring out its natural flavors!

STEP TWO: Pour the broth, water, and onion soup mix into a 6-quart crockpot and stir. Add the bay leaf, baby potatoes, and carrots, and season with a bit of salt and pepper.

overhead shot of crockpot

STEP THREE: Add the beef on top of the vegetables and cover. Cook on Low for 8-10 hours, or on High for 4-5 hours. 

STEP FOUR: Transfer the beef to a cutting board to rest before serving. Place the vegetables on a serving tray — leave the broth inside the crockpot for now. 

london broil in skillet

STEP FIVE: Whisk the cornstarch and water together until well-combined, then add the slurry to the broth and stir gently to mix. Set your crockpot to High and cook the gravy for 15-20 minutes to thicken it.

STEP SIX: Carve the beef and serve with your homemade gravy, vegetables, and noodles or rice if desired. Enjoy!

crockpot with london broil and potatoes

Should London Broil Be Cooked Fast or Slow?

I’m all about low and slow cooking! You’ll get tender and juicy results every time if you make London Broil in the slow cooker.

If you cook it at a too-high temperature, you’ll end up with dry, hard, and chewy meat. It’s just one of the reasons why I love this London broil crock pot recipe!

ready to serve london broil

Do You Need to Put Liquid in a Slow Cooker With Beef?

You do need to add a bit of liquid to the mix for your crockpot London broil with vegetables, but don’t feel like you need to completely cover it.

I typically add 1 cup of beef broth and 1 cup of water to mine. Both the beef and vegetables will release liquid and moisture as it cooks.

If you add more, you’ll end up with beef stew! Which, of course, is delicious but a totally different dish.

What’s the Best Way to Tenderize a London Broil?

If you follow my slow cooker London broil with potatoes and carrots recipe, you won’t have to worry about tenderizing the beef before you get started.

That’s the beauty of this low and slow cooking method! If you do roast yours in the oven, you can tenderize it by allowing the beef to marinate before popping it in the oven. 

Other Beef Recipes You’ll Love:

platter with london broil

What Happens If You Don’t Brown Meat Before Slow Cooking?

You’ll note that I mention browning or searing the meat before placing it in the crockpot is optional.

However, I will say that I almost always do! Browning the meat will bring out its natural flavors, and it also helps to ensure it cooks evenly.

It will also ensure that the beef doesn’t get too greasy as your slow cooker London broil cooks.

More London Broil Recipes

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Yield: 4 to 6 servings

Slow Cooker London Broil

platter with london broil

My slow cooker London broil recipe will give you tender results every time! Full of beef and veggies and cooked low and slow in the crockpot.

Prep Time 10 minutes
Cook Time 8 hours 15 minutes
Total Time 8 hours 25 minutes


  • 2.5-3 pounds London Broil roast
  • Kosher salt, to taste
  • Black pepper, to taste
  • 2 tablespoons olive oil
  • 1 cup beef broth
  • 1 cup water
  • 1 envelope onion soup mix
  • 1 bay leaf
  • 1 ½ pounds baby potatoes
  • ¾ pound carrots, chopped 1 ½-2 inch piece
  • 2 tablespoons cold water
  • 1 tablespoon cornstarch


  1. (Optional) Heat olive oil in a large skillet set over medium-high heat. Season the beef with salt and pepper, then sear for 1-2 minutes on all sides.
  2. Add broth, water, and soup mix to a 6-quart crock pot, stirring well. Add the bay leaf, baby potatoes, and carrots. Season the veggies with a bit of salt and pepper.
  3. Place the beef on top of the veggies. Cover and cook on LOW for 8-10 hours or HIGH for 4-5 hours.
  4. When ready to serve, transfer the beef to a cutting board to rest. Spoon the vegetables into a serving tray, leaving the liquids behind. Whisk together the cornstarch and water until well combined, then whisk the slurry into the gravy and gently stir. Turn up the heat to HIGH and cook for 15-20 minutes to thicken the gravy.
  5. Carve the roast and serve with gravy and vegetables.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 854Total Fat: 48gSaturated Fat: 18gTrans Fat: 0gUnsaturated Fat: 25gCholesterol: 264mgSodium: 715mgCarbohydrates: 32gFiber: 4gSugar: 4gProtein: 71g

This nutrition information is based on the exact products I used in this recipe. Brands and sizes of products could alter exact nutrition and should always be calculated independently.

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About Samantha

I’ve always had a love of cooking and creating new recipes, so it only made sense to create a food blog so I could share those recipes with you. This site is designed to provide easy and flavorful recipes with as little ingredients as possible. That means you still get great flavor combinations without all that extra time and effort. Read more...

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