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 Roast Beef With Roasted Mixed Vegetables?

You need 12 ingredients. The key ingredients include: 1 (4 -5 lb) beef chuck roast, 1 ounce dry ranch dressing mix (one envelope), 1 ounce dry au jus mix (one envelope), 1/4 - 1/2 cup butter, cut into tablespoons, and more.

Is Slow Cooker Roast Beef With Roasted Mixed Vegetables suitable as meat & poultry?

Yes, Slow Cooker Roast Beef With Roasted Mixed Vegetables falls under the Meat & Poultry category and is a great choice for this type of meal.

How do I store leftover Slow Cooker Roast Beef With Roasted Mixed Vegetables?

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

Slow Cooker Roast Beef With Roasted Mixed Vegetable

Name: Slow Cooker Roast Beef With Roasted Mixed Vegetables
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 (4 -5 lb) beef chuck roast; 1 ounce dry ranch dressing mix (one envelope); 1 ounce dry au jus mix (one envelope); 1/4 - 1/2 cup butter, cut into tablespoons; 5 pepperoncini peppers; Roasted Mixed vegetables ingredients; 1 lb fingerling potato, scrubbed and quartered; 4 carrots, peeled and cut into 1 1/2 inch pieces; 2 cups Brussels sprouts, trimmed (halved or quartered); 1/4 cup olive oil; 2 teaspoons garlic, minced; salt & fresh ground pepper

Try this homemade Slow Cooker Roast Beef With Roasted Mixed Vegetables recipe the whole family will love. Made with beef chuck roast, butter, pepperonci…

This Slow Cooker Roast Beef With Roasted Mixed Vegetables relies on simple, everyday ingredients such as (4 -5 lb) beef chuck roast, butter, cut into tablespoons, pepperoncini peppers and olive oil. It comes together quickly and makes 4 servings, at about 411 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Meat & Poultry

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

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.

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

My Personal Notes

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Slow Cooker Roast Beef With Roasted Mixed Vegetables

Tips for the best results

Variations & substitutions

My Personal Notes

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