This incredibly tender Baked Creamy Mushroom Beefrequires only four ingredients and five minutes of prep time! Slow-baked in the oven until perfectly tender, it creates a rich, savory gravy that is perfect over mashed potatoes, egg noodles, or rice.
If you’ve never tried baking beef stew meat low and slow in a creamy mushroom sauce, you’re in for a treat. The long, gentle heat transforms even modest stew meat into fork-tender perfection. The cream of mushroom soup creates a velvety gravy. The onion soup mix adds savory depth. And the water helps everything come together into a silky, spoon-coating sauce.
This is the kind of meal that feels like a warm hug on a cold day. It’s comforting, satisfying, and almost embarrassingly easy. Set it in the oven, walk away for a few hours, and come back to a house that smells amazing and dinner that’s ready to serve.
Why You’ll Love This Recipe
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Only four ingredients – Beef stew meat, cream of mushroom soup, onion soup mix, water.
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Five minutes of prep – Seriously. That’s all it takes.
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Incredibly tender beef – Low and slow is the secret.
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Rich, savory mushroom gravy – Perfect for sopping up with mashed potatoes or noodles.
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No browning required – The oven does all the work.
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Hands-off cooking – Set it and forget it.
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Budget-friendly – Stew meat is one of the most affordable cuts of beef.
Ingredients
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Beef stew meat – 2 pounds, cut into 1- to 1½-inch cubes
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Condensed cream of mushroom soup – 2 cans (10.5 ounces each)
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Dry onion soup mix – 1 packet (1 ounce)
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Water – ½ cup
Ingredient Notes
What is beef stew meat? Beef stew meat is typically cut from the chuck (shoulder) or round (hind leg). It’s well-marbled with connective tissue that breaks down during long, slow cooking, becoming incredibly tender and flavorful. You can also buy a chuck roast and cut it into cubes yourself — it’s often cheaper.
Can I use a different cut of beef? Yes. Chuck roast, brisket, or round steak all work. Avoid very lean cuts like sirloin or tenderloin — they can become dry during long cooking.
What kind of cream of mushroom soup?Campbell’s is the classic brand. Store brand works fine. Do not use “healthy” or low-fat versions — they can be thinner and less flavorful. If you want a richer gravy, substitute one can of golden mushroom soup for one can of regular cream of mushroom.
What kind of onion soup mix?Any standard 1-ounce packet works. Lipton is the classic brand. The dry mix contains dehydrated onions, salt, beef bouillon, and spices. It adds immense flavor without any extra work. You can also make your own (see Variations).
Why do I need to add water?The cream of mushroom soup is thick. The water helps create the right gravy consistency and provides enough liquid for the beef to braise properly. The beef also releases juices as it cooks.
Do I need to add extra salt? The onion soup mix is already quite salty. Taste the gravy before adding any additional salt. A little black pepper is a nice addition.
Step-by-Step Instructions
Step 1: Preheat and Prepare
Preheat your oven to 300°F (150°C) .
Lightly grease a 9×13-inch glass casserole dish with a bit of oil or cooking spray to prevent sticking. A glass dish is recommended because it distributes heat evenly and allows you to see the bubbling gravy.
Step 2: Add the Beef
Spread the 2 pounds of raw beef stew meatevenly in the bottom of the glass casserole dish. Break up any pieces that are stuck together so they cook evenly.
Do not brown the beef first — it will cook perfectly in the oven.
Step 3: Mix the Sauce
In a medium bowl, whisk together:
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2 cans condensed cream of mushroom soup
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1 packet dry onion soup mix
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½ cup water
Whisk until mostly smooth. It doesn’t need to be perfect — just well combined so the flavors are distributed.
Step 4: Pour the Sauce Over the Beef
Pour the cream of mushroom soup mixture evenly over the raw beef stew meat, making sure all the meat is coated.
Use a spatula or spoon to gently nudge the sauce into the corners and around the edges if needed.
Step 5: Cover and Bake
Cover the glass casserole dish tightly with aluminum foil. Crimp the edges to trap moisture — this helps the beef become tender as it bakes.
Bake in the preheated oven for 2½ to 3 hours.
The beef is ready when it is very tender when pierced with a fork and the sauce has thickened into a creamy gravy.
Important: Avoid uncovering frequently, as that releases steam and can slow down the cooking. Trust the process.
Step 6: Stir and Rest
Carefully remove the casserole dish from the oven and take off the foil, watching out for hot steam.
Give the beef and sauce a gentle stir to re-coat the pieces and even out the texture of the gravy.
Let the dish rest for about 5 minutes before serving.
Step 7: Serve
Taste and adjust seasoning if desired (the onion soup mix is salty, so you may not need additional salt). A sprinkle of black pepper is a nice addition.
Serve the creamy mushroom beef over mashed potatoes, egg noodles, or rice. Spoon plenty of the rich gravy over each serving.
Variations & Tips
Use Golden Mushroom Soup
Substitute 1 can of golden mushroom soupfor 1 can of regular cream of mushroom. Golden mushroom soup has a richer, more savory flavor and a deeper color.
Add Fresh Mushrooms
Add 8 ounces of sliced fresh mushrooms to the casserole dish along with the beef. The mushrooms will cook in the gravy, adding earthy depth and texture.
Add Garlic
Add 4–6 cloves of minced fresh garlic to the sauce mixture. Garlic and mushrooms are a classic pairing.
Add Fresh Herbs
Add 2 sprigs of fresh thyme or 1 sprig of fresh rosemary to the casserole before baking. Remove the stems before serving. The herbs add aromatic depth.
Make It with Red Wine
Replace the ½ cup of water with ½ cup of red wine (like Merlot or Cabernet Sauvignon). The wine adds richness and complexity. If using wine, you can reduce the water slightly.
Make It in the Slow Cooker
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Add the raw beef to the slow cooker.
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Whisk together the cream of mushroom soup, onion soup mix, and water. Pour over the beef.
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Cook on LOW for 7–8 hoursor HIGH for 4–5 hours.
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No need to stir — just let it go.
Make It Gluten-Free
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Use gluten-free cream of mushroom soup(several brands make it)
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Use gluten-free dry onion soup mix (or make your own)
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The beef is naturally gluten-free
Homemade Onion Soup Mix
Combine:
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3 tablespoons dried minced onion
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2 tablespoons beef bouillon powder
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½ teaspoon onion powder
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¼ teaspoon parsley flakes
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¼ teaspoon celery seed
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¼ teaspoon paprika
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⅛ teaspoon black pepper
Use 1 ounce (about 3 tablespoons) for this recipe.