Slow-Cooked Beef Chuck Roast with Carrots and Onions

By AislePrompt Editorial · Published 2026-06-19 · Updated 2026-06-19

Tender slow-cooked beef chuck roast infused with aromatic herbs and paired with sweet carrots and caramelized onions for a hearty Whole30 dinner. This American-inspired beef recipe (whole30, gluten free), ready in about 320 minutes, pairs beef chuck roast, carrots, yellow onions for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 calories and feeds 6, so it slots cleanly into a Whole30 week and pairs well with roasted sweet potato or a simple olive-oil salad. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 3 lbs beef chuck roast
• 4 large, peeled and cut into 2-inch pieces carrots
• 2 medium, sliced into thick rings yellow onions
• 5, smashed garlic cloves
• 2 cups (Whole30 compliant) beef broth
• 2 tbsp olive oil
• 1 tsp dried thyme
• 1 tsp dried rosemary
• 1 1/2 tsp sea salt
• 1 tsp black pepper

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Instructions

1. Step 1: Heat 2 tbsp olive oil in a large skillet over medium-high heat. Season 3 lbs beef chuck roast with 1 tsp sea salt and 1/2 tsp black pepper. Sear roast for 4 minutes per side until a deep brown crust forms. Transfer to slow cooker.
2. Step 2: In the same skillet, sauté 2 sliced medium yellow onions for 4 minutes until softened and slightly browned. Add 5 smashed garlic cloves and cook 1 minute until fragrant.
3. Step 3: Add sautéed onions and garlic to the slow cooker along with 4 large peeled and cut carrots and 2 cups Whole30-compliant beef broth.
4. Step 4: Sprinkle 1 tsp dried thyme, 1 tsp dried rosemary, 1/2 tsp sea salt, and 1/2 tsp black pepper over the roast and vegetables.
5. Step 5: Cover and cook on low for 8 hours or on high for 4-5 hours until beef is fork-tender and carrots are soft.
6. Step 6: Remove beef and vegetables carefully. Slice beef against the grain and serve with the carrots and onions ladled with cooking juices.