London Broil Roast Crock Pot Recipe: Set It and Forget It Savory Beef

This London Broil roast transforms tough beef into fall-apart tender perfection with minimal effort.

Using a crock pot ensures savory, evenly cooked meat that absorbs the marinade’s bold flavors. The low, slow method breaks down connective tissue, delivering restaurant-quality results without constant attention.

Simple seasonings and a few hours in the slow cooker yield a juicy roast with a rich, concentrated sauce. It’s ideal for busy days when you want a hearty meal ready at dinnertime.

Serve sliced thin against the grain for maximum tenderness, paired with your favorite sides.

Ingredients for London Broil Roast Crock Pot

Transform tough beef with these bold, savory ingredients for restaurant-quality results.

The beef cut is everything here. London broil (top round or flank) needs to be well-marbled for the slow cooker to work its magic. Costco and Whole Foods have great pre-cut options, but most butchers will slice a roast to your preferred thickness (ask for 1-1.5 inches). Avoid lean cuts like sirloin—they’ll dry out. The wine? Any bold, dry red works (I keep a cheap Cab on hand just for cooking).

No red wine? Beef broth plus a splash of balsamic vinegar mimics the acidity. Out of Worcestershire? Extra soy sauce with a pinch of brown sugar gets close. Dried herbs work fine, but use half the amount if substituting fresh. The veggies are flexible—swap in potatoes or mushrooms if that’s what you’ve got (just cut them large so they don’t turn to mush).

This actually improves overnight. Store in the fridge for up to 4 days—the flavors deepen as it sits. Freezes beautifully for 3 months (slice before freezing for easy portions). I always make extra; leftovers are perfect for sandwiches or tacos the next day.

Step-by-Step Instructions for London Broil Roast Crock Pot

Here’s how to transform this budget-friendly cut into a fork-tender masterpiece with minimal effort.

Step 1: Sear the London Broil Roast for Depth of Flavor

Pat the 2.5 lb London Broil Roast dry with paper towels, then season generously with the 1 tsp Kosher Salt and 1 tsp Black Pepper. This step ensures a good sear and prevents the meat from steaming in the slow cooker.

Heat the 2 tbsp Olive Oil in a large skillet over medium-high heat until shimmering. Sear the roast for 3-4 minutes per side until deeply browned. You’re looking for a rich, caramelized crust—this adds incredible flavor and locks in juices.

Step 2: Build the Aromatic Base in the Crock Pot

Place the thinly sliced Yellow Onion, 3 whole Carrots (peeled and cut into chunks), and 3 pieces Celery Stalks (cut into large pieces) in the bottom of your slow cooker. These vegetables will create a flavorful bed for the roast while also infusing the cooking liquid.

Add the 6 cloves minced Garlic Cloves, 1 tbsp Dried Rosemary (crushed to release the oils), and 1 tbsp Dried Thyme. The herbs will bloom in the liquid, filling your kitchen with an irresistible aroma as the dish cooks.

Step 3: Deglaze and Combine the Liquids

After searing, pour the 0.5 cup Red Wine into the hot skillet and scrape up all the browned bits with a wooden spoon. This step, called deglazing, ensures none of that flavorful fond goes to waste. Let it simmer for 1-2 minutes until slightly reduced.

Transfer the roast to the slow cooker on top of the vegetables. Pour in the deglazed wine, 0.5 cup Soy Sauce, 1 cup Beef Broth, and 1 tbsp Worcestershire Sauce. The liquid should come about halfway up the roast—this guarantees even cooking and maximum tenderness.

Step 4: Slow Cook to Perfection

Cover the slow cooker and set it to low heat for 8-10 hours or high heat for 5-6 hours. The roast is done when it shreds easily with a fork and reaches an internal temperature of 195-200°F.

Resist the urge to lift the lid during cooking—every time you do, you extend the cooking time by 20-30 minutes. The steam and heat need to stay trapped inside for the best results. By the end, the meat will be fall-apart tender, and the vegetables will have soaked up all the savory, herby goodness.

Health Benefits of This london broil roast crock pot

Protein Powerhouse

This dish delivers a serious protein punch with about 50 grams per serving from the 2.5 lb London Broil Roast. Protein is essential for muscle repair and growth, making this a great option for active lifestyles or anyone looking to maintain muscle mass. 💪

Iron-Rich Benefits

Beef is one of the best sources of heme iron, which your body absorbs more easily than plant-based iron. A serving provides about 3.5 mg, helping prevent fatigue and supporting red blood cell production. I notice I feel more energized when I include beef in my meals.

B Vitamin Boost

The roast is packed with B vitamins, particularly B12 and B6, crucial for energy metabolism and brain function. B12 is especially important for nerve health, and this dish provides nearly 50% of your daily needs per serving.

Zinc for Immunity

You’ll get a solid dose of zinc from this recipe—about 7 mg per serving. Zinc supports immune function, wound healing, and DNA synthesis. It’s a nutrient many people don’t get enough of, especially those who don’t eat much meat.

Low-Carb Friendly

With only 5-7 grams of carbs per serving (mostly from the vegetables), this dish fits perfectly into low-carb or keto diets. The slow cooking method keeps the beef tender without needing added sugars or starches. 🌱

Healthy Fats

While leaner than some cuts, London broil still provides heart-healthy monounsaturated fats and a small amount of omega-3s. These fats support cell health and help your body absorb fat-soluble vitamins from the veggies in the pot.

Frequently Asked Questions