Easy Slow Cooker Roast Beef with Radishes

Lunch, Red Meat

March 10, 2026

A Foolproof Roast Beef Dinner for Any Night of the Week!

Imagine coming home to the incredible aroma of a perfectly cooked roast beef, tender enough to fall apart with a fork. This slow cooker recipe makes that dream a reality with just minutes of prep time! We’re swapping traditional potatoes for radishes, which cook down to become surprisingly mellow and tender, adding a unique, peppery bite that beautifully complements the rich beef and tangy balsamic. It’s a sophisticated yet simple meal that’s perfect for a cozy Sunday supper or even a busy weeknight.

Ingredients

• 4 tbsp (60 ml) olive oil, divided
• 1 medium onion, sliced
• 6 whole radishes (about 1 to 1½ inches / 2.5 to 4 cm in diameter), trimmed
• 1 boneless beef chuck roast (about 2½ lbs / 1.1 kg)
• 3 tbsp (45 ml) balsamic vinegar
• 1 tbsp dried Italian seasoning
• 2 tsp dried minced garlic
• 1 tsp salt
• 1 tsp ground black pepper
• ½ cup (120 ml) beef broth

Instructions

1. Grease the bottom and sides of a medium slow cooker with 2 tablespoons of the olive oil. Scatter the sliced onion and trimmed radishes evenly across the bottom.2. Pat the chuck roast dry with paper towels. Rub the remaining 2 tablespoons of olive oil over all sides of the beef, then place it in the slow cooker on top of the vegetables. Brush the top and sides of the roast with the balsamic vinegar. Sprinkle evenly with the Italian seasoning, dried garlic, salt, and pepper. Pour the beef broth around the base of the roast.3. Cover and cook on LOW for 6 to 8 hours, or until the beef is fork-tender.

Nutritional Information

• (per serving)
• Calories: 560
• Fat: 43g (69%)
• Net Carbs: 3g (2%)
• Protein: 37g (26%)

Pro Tips

• For a deeper, richer flavor, sear the roast in a hot, oiled skillet on all sides before placing it in the slow cooker. This creates a beautiful crust.
• Don’t discard the cooking liquid! Strain it into a saucepan, bring to a simmer, and thicken with a cornstarch slurry to create a delicious gravy.
• Once cooked, let the roast rest on a cutting board for 10-15 minutes before shredding or slicing. This helps the juices redistribute for a more tender result.
• Feel free to add other root vegetables like carrots or small new potatoes along with the radishes for a complete one-pot meal.

FAQ

Q: What kind of beef is best for this slow cooker recipe
A: This recipe specifically calls for a boneless beef chuck roast, which is ideal for slow cooking as it becomes incredibly fork-tender after 6 to 8 hours on a low setting.

Q: Can I add potatoes or other vegetables to this roast
A: Absolutely. While the recipe features radishes as a unique, low-carb alternative, you can easily add other root vegetables like carrots or small new potatoes for a more traditional one-pot meal.

Q: How do I make gravy from the cooking liquid
A: To make a delicious gravy, simply strain the liquid left in the slow cooker into a saucepan. Bring it to a simmer and thicken it with a cornstarch slurry until it reaches your desired consistency.

Q: Is this roast beef recipe low-carb or keto-friendly
A: Yes, by using radishes instead of potatoes, this recipe is very low in carbohydrates. Each serving contains only 3g of net carbs, making it an excellent choice for a low-carb or keto diet.

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