Easy Slow Cooker Roast Beef

There’s something so comforting about coming home to the smell of roast beef that’s been cooking all day. I can’t count how many times I’ve rushed through my front door, following my nose straight to the kitchen. Making a roast used to feel like a Sunday-only affair, but my slow cooker changed all that.

Now, I just prep everything in the morning while I’m making breakfast, toss it in the slow cooker, and let it do its thing while I’m going about my day. No hovering over the oven, no constant temperature checks, no stress. By dinner time, I’ve got a tender roast that makes everyone think I spent hours in the kitchen.

Want to know the best part? It’s practically impossible to mess up. Even on days when I’m running late and barely have time to think, I can still get this roast going. And leftovers? They make the most amazing sandwiches for lunch the next day.

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What Kind of Beef Roast Should I Use?

For a slow cooker roast beef, chuck roast and rump roast are both excellent choices, but they each bring something different to the table. Chuck roast, which comes from the shoulder area, has more marbling (little streaks of fat) throughout the meat, making it super tender after slow cooking and perfect for shredding. Rump roast, from the rear of the cow, is a bit leaner but still becomes tender when cooked low and slow. When shopping, look for meat with a bright red color and some white marbling throughout – but don’t worry if your market only has one option, as both cuts will work great in this recipe. Just make sure you’re getting a piece that’s about 3 pounds, as this size works best with the cooking time and seasoning amounts in this recipe.

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Options for Substitutions

This slow cooker roast beef recipe is pretty adaptable – here are some handy swaps you can try:

• Chuck or rump roast: While these cuts are ideal for slow cooking, you can also use bottom round, brisket, or shoulder roast. Just make sure it’s a tough cut with good marbling – these work best for slow cooking.
• Steak seasoning blend: No steak seasoning? Make your own by mixing equal parts black pepper, garlic powder, onion powder, and paprika. Add a pinch of red pepper flakes if you like heat.
• Italian herb mix: You can make your own blend using dried basil, oregano, thyme, and rosemary. Or simply use any single dried herb you have on hand.
• Baby carrots: Regular carrots cut into chunks work just fine. You can also swap in parsnips for a different flavor.
• Red potatoes: Any potato variety works here – Yukon golds or russets are good options. Just cut them into similar-sized pieces so they cook evenly.
• Cornstarch: For thickening the gravy, you can use flour instead (use 6 tablespoons mixed with cold water), or instant potato flakes (start with ¼ cup).
• Beef broth: Chicken broth works in a pinch, but add a beef bouillon cube to keep that rich beef flavor. You can also use water with 2 beef bouillon cubes.

Watch Out for These Mistakes While Cooking

The biggest mistake when making slow cooker roast beef is skipping the crucial step of searing the meat before placing it in the slow cooker – taking just 5 minutes to brown each side creates a richer flavor and better texture in the final dish. A common error is adding all vegetables at the beginning of cooking, which can lead to mushy, overcooked results – instead, add firmer vegetables like carrots and potatoes halfway through the cooking time. Another pitfall is lifting the lid too frequently to check on the progress, as each peek can add 15-20 minutes to your cooking time by releasing the accumulated heat. For the most tender results, avoid cutting the meat right after it’s done – let it rest for 15-20 minutes before slicing against the grain, which allows the juices to redistribute throughout the roast. To get that perfect gravy consistency at the end, make sure to mix your cornstarch with cold water (not hot) before adding it to the cooking liquid, preventing any unwanted lumps.

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What to Serve With Pot Roast?

This hearty slow cooker roast beef already comes with classic vegetables, but there are some simple sides that can make the meal even better! A basket of warm dinner rolls or crusty French bread is perfect for soaking up all that tasty gravy. If you’re looking to add more greens to your plate, a simple side salad with mixed lettuce and a light vinaigrette dressing helps balance out the richness of the roast. Some people also like to serve buttered egg noodles or mashed potatoes alongside their pot roast – both are great for catching extra gravy and making the meal even more filling.

Storage Instructions

Keep Fresh: This slow cooker roast beef is perfect for leftovers! Place the meat and vegetables in separate airtight containers and pour the gravy in another container. Keep everything in the fridge for up to 4 days. The flavors actually get even better after a day or two as they continue to meld together.

Freeze: Got extra portions? This roast freezes really well for up to 3 months. I recommend freezing the meat and gravy separately from the vegetables to maintain the best texture. Just make sure to let everything cool completely before transferring to freezer-safe containers or bags.

Reheat: When you’re ready to enjoy your leftovers, warm the meat and gravy gently in a covered pan on low heat or in the microwave, adding a splash of beef broth if needed to keep things moist. Heat the vegetables separately to prevent them from becoming too soft. If reheating from frozen, thaw overnight in the fridge first.

Preparation Time	15-20 minutes
Cooking Time	360-540 minutes
Total Time	375-560 minutes
Level of Difficulty	Medium

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 2200-2500
• Protein: 180-200 g
• Fat: 130-150 g
• Carbohydrates: 180-200 g

Ingredients

For the roast:

• 1 large onion (cut into 8 large wedges)
• 3 lb chuck roast (boneless is easier to slice)
• 2 lb potatoes (cut into 2-inch chunks)
• 1 lb baby carrots (left whole for best texture)
• 1 stalk celery (sliced into 1-inch pieces)

For the seasoning:

• 2 tbsp steak seasoning (I use McCormick Montreal Steak Seasoning)
• 2 cups beef broth (low sodium, I use Kitchen Basics)
• 1 tbsp Italian herbs

For the gravy:

• 3 tbsp cold water
• 2 tsp salt
• 1 tsp onion powder
• 2 tsp garlic powder
• 3 tbsp cornstarch (for thickening)
• 1 tsp black pepper (freshly ground for best flavor)

Step 1: Season the Roast

Begin by whisking together your favorite steak seasoning and Italian seasoning in a small bowl.

Rub this seasoning mix thoroughly all over the roast, ensuring every surface is covered for optimal flavor.

Step 2: Prepare the Slow Cooker

Grease the inside of your slow cooker to prevent sticking.

Place the seasoned roast into the slow cooker.

Add beef broth, followed by evenly distributing potatoes, carrots, onions, and celery around the roast.

Step 3: Cook the Roast

Cover the slow cooker with the lid and cook the contents on low for 9 hours, or if you’re short on time, cook on high for 6 hours.

This slow cooking process will result in a tender and flavorful roast.

Step 4: Prepare the Gravy

Minutes before you’re ready to serve, remove the liquid from the slow cooker and pour it into a medium saucepan.

Add salt, pepper, garlic powder, and onion powder to the liquid, and bring to a boil over medium-high heat.

Step 5: Thicken the Gravy

In a separate small bowl, whisk together corn starch and cold water until smooth.

Gradually add this mixture to the saucepan with the boiling liquid, and reduce the heat to medium-low.

Allow the gravy to thicken over the course of 3-5 minutes, stirring occasionally.

Step 6: Serve the Roast

Place the roast onto a large plate or serving platter.

Use a fork to gently pull apart the meat, shredding it into bite-sized pieces if desired.

Pour the prepared gravy over the roast (and vegetables, if you like).

Serve immediately and enjoy this hearty meal!