Tender Onion Soup Pot Roast

Onion soup pot roast is the easiest way to turn a handful of pantry staples into a deeply satisfying, slow-roasted dinner. With just six ingredients and one pan, this recipe transforms a well-marbled chuck roast into melt-in-your-mouth beef, surrounded by tender potatoes and carrots, all smothered in a rich onion-mushroom gravy. It’s hearty, hands-off, and tastes like Sunday supper — even on a weeknight.

Why You’ll Love This Recipe

• Only 6 ingredients – Simple and affordable with zero sacrifice in flavor.
• Minimal prep – No chopping onions or pre-searing — just layer and bake.
• One-pot magic – Meat, vegetables, and sauce cook together.
• Hands-off cooking – Oven does the heavy lifting while your house smells amazing.
• Family-friendly flavor – Savory and comforting, even picky eaters love it.

Ingredients

• 4 lb chuck roast, well-marbled
• 5 Yukon Gold potatoes, quartered
• 5 carrots, cut into 2-inch chunks
• 1 oz onion soup mix (store-bought or homemade)
• 10.5 oz cream of mushroom soup
• 1 cup beef broth, low-sodium preferred

Instructions

1. Prep the Veggies
   Peel the carrots and potatoes, then cut into large chunks. Arrange in a single layer on the bottom of a large roasting pan.
2. Add the Roast
   Place the chuck roast directly on top of the vegetables so it bastes them as it cooks.
3. Mix the Sauce
   In a medium bowl, whisk together the onion soup mix, cream of mushroom soup, and beef broth until smooth.
4. Pour and Cover
   Pour the sauce evenly over the roast and veggies, scraping the bowl clean. Cover the pan tightly with a lid or foil.
5. Bake Low and Slow
   Bake at 325°F (163°C) for 3 hours, or until the beef is fork-tender and veggies are soft but not mushy.
6. Rest and Serve
   Let the roast rest for 10–15 minutes before slicing. Spoon gravy over everything and serve hot.

Recipe Details

• Prep Time: 20 minutes
• Cook Time: 3 hours
• Total Time: 3 hours 20 minutes
• Servings: 4
• Difficulty: Easy
• Method: Oven braised
• Cuisine: American comfort food

Nutrition Facts (Per Serving – Estimate)

• Calories: 900–950
• Protein: 70–80g
• Fat: 45–55g
• Carbohydrates: 55–65g
• Sodium: ~700mg

Note: Based on 4 large servings; actual values will vary depending on soup mix and broth used.

Tips & Variations

• Use homemade onion soup mix: Combine dried minced onion, bouillon powder, onion powder, garlic powder, and a pinch of salt.
• No cream of mushroom? Substitute cream of celery or mix milk + sautéed mushrooms + flour for a homemade option.
• Lean roast alternative: Bottom round works in a pinch, but may be less juicy.
• Skip the potatoes if you plan to freeze leftovers — they can get a little soft.

FAQs

Do I need to sear the roast first?

Not for this version — it’s designed to be no-fuss. But if you have time, searing adds extra flavor.

Can I make this in a slow cooker?

Yes! Cook on LOW for 8 hours. Add potatoes and carrots halfway through to prevent overcooking.

How long will leftovers keep?

Refrigerate for up to 4 days or freeze for up to 3 months. Reheat gently on the stovetop with a splash of broth.

Tender Onion Soup Pot Roast

A classic one-pot roast using onion soup mix and cream of mushroom for a rich, savory gravy — comfort food at its easiest.

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Prep Time 20 minutes mins

Cook Time 3 hours hrs

Total Time 3 hours hrs 20 minutes mins

Course dinner

Cuisine American

Servings 4

Calories 901 kcal

Equipment

• – Roasting pan with lid or foil
• Large mixing bowl
• – Cutting board

Ingredients

  

• – 4 lb chuck roast well-marbled
• – 5 Yukon Gold potatoes quartered
• – 5 carrots cut into 2-inch chunks
• – 1 oz onion soup mix packet or homemade
• – 10.5 oz cream of mushroom soup
• – 1 cup low-sodium beef broth

Instructions

 

• Preheat oven to 325°F (163°C).
• Place cut potatoes and carrots in a roasting pan.
• Place the roast on top of the vegetables.
• Mix onion soup mix, cream of mushroom soup, and broth in a bowl.
• Pour sauce evenly over roast and vegetables.
• Cover tightly with foil or a lid and bake for 3 hours.
• Let rest 10–15 minutes before slicing and serving.

Notes

– Homemade soup mix works great as a substitute.
– Add vegetables halfway through if you like them firmer.
– Let roast rest before slicing for best texture.

Keyword onion soup pot roast

Conclusion

This onion soup pot roast is the answer to busy days when you want maximum comfort with minimal effort. With just a handful of ingredients, it delivers deep, slow-roasted flavor, tender meat, and the kind of gravy you’ll want to drink with a spoon. Serve it with crusty bread or a crisp salad, and dinner is done.