How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Slow Cooker Barbecue Beef?

You need 15 ingredients. The key ingredients include: 1 beef sirloin tip roast (3 pounds), cut into large chunks, 3 celery ribs, chopped, 1 large onion, chopped, 1 medium green pepper, chopped, and more.

Is Slow Cooker Barbecue Beef suitable as soups & stews?

Yes, Slow Cooker Barbecue Beef falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Slow Cooker Barbecue Beef?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Slow Cooker Barbecue Beef Recipe

Name: Slow Cooker Barbecue Beef
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 beef sirloin tip roast (3 pounds), cut into large chunks; 3 celery ribs, chopped; 1 large onion, chopped; 1 medium green pepper, chopped; 1 cup ketchup; 1 can (6 ounces) tomato paste; 1/2 cup packed brown sugar; 1/4 cup cider vinegar; 3 tablespoon chili powder; 2 tablespoons lemon juice; 2 tablespoons molasses; 2 teaspoons salt; 2 teaspoons Worcestershire sauce; 1 teaspoon ground mustard; 8 to 10 sandwich rolls, split

Try this homemade Slow Cooker Barbecue Beef recipe the whole family will love. Made with beef sirloin tip roast, celery, onion and green pepper. Easy st…

This Slow Cooker Barbecue Beef relies on simple, everyday ingredients such as celery ribs, chopped, large onion, chopped, medium green pepper, chopped and ketchup. It comes together quickly and makes 4 servings, at about 281 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

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Slow Cooker Barbecue Beef

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions