Description
Creamy Beef & Mushroom Rice Bake is the ultimate cosy comfort-food casserole. It combines seasoned ground beef, earthy mushrooms, tender rice, creamy mushroom soup, tangy sour cream, and savoury beef broth in one delicious oven-baked dish.
As it bakes, the uncooked rice absorbs the flavourful beef broth and creamy sauce, becoming tender and rich, while the beef and mushrooms add plenty of savoury flavour. A layer of shredded cheddar cheese on top is optional, but it creates a golden, bubbly finish that makes this casserole especially irresistible.
This recipe is simple enough for a busy weeknight but comforting enough for a family Sunday dinner. Everything comes together in one baking dish, making cleanup easy too.Also read
Ingredients
Main Ingredients
- 1 lb ground beef
- 1 cup chopped mushrooms
- 1 small onion, diced
- 1 cup uncooked white rice
- 1 can (10.5 oz) cream of mushroom soup
- 2 cups beef broth
- 1/2 cup sour cream
- 1 teaspoon garlic powder
- Salt, to taste
- Black pepper, to taste
- 1 cup shredded cheddar cheese, optional
Optional Additions
For extra flavour or texture, you can also add:
- 1/2 teaspoon onion powder
- 1 teaspoon Worcestershire sauce
- 1/2 teaspoon dried thyme
- 1/2 cup frozen peas
- 1/2 cup diced bell pepper
- 2 tablespoons chopped fresh parsley
Instructions
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C).
Lightly grease a 9 x 13-inch baking dish with cooking spray or a small amount of oil.
Greasing the dish helps prevent the rice and creamy sauce from sticking to the bottom and makes serving easier.
Step 2: Brown the Ground Beef
Place a large skillet over medium heat.
Add the ground beef and cook for approximately 6–8 minutes, breaking it apart with a wooden spoon or spatula as it cooks.
Continue cooking until the beef is browned and no longer pink.
If there is a large amount of excess grease in the skillet, carefully drain it.
Season the beef with garlic powder, salt, and black pepper.
For extra flavour, add Worcestershire sauce if desired.
Step 3: Cook the Onion and Mushrooms
Add the diced onion and chopped mushrooms to the skillet with the beef.
Cook for approximately 4–5 minutes, stirring occasionally.
The onion should become soft and translucent, while the mushrooms should begin to release their moisture and become tender.
If you’re adding bell peppers, add them at this stage as well.
Step 4: Prepare the Creamy Mixture
In a large bowl, combine the cream of mushroom soup, beef broth, and sour cream.
Whisk until smooth.
Add a little black pepper and any additional seasonings you prefer.
The mixture may look fairly thin at this point, but that’s exactly what you want. The uncooked rice will absorb the liquid during baking.
Step 5: Combine Everything
Add the uncooked white rice to the prepared baking dish.
Pour the cooked beef, mushroom, and onion mixture over the rice.
Pour the creamy soup mixture evenly over everything.
Stir gently until the rice, beef, mushrooms, and sauce are evenly distributed throughout the dish.
Make sure the rice is mostly submerged in the liquid. This is important because the rice needs enough moisture to cook properly.
Step 6: Cover and Bake
Cover the baking dish tightly with aluminium foil.
Place it in the preheated oven and bake for approximately 45–55 minutes.
Keeping the dish covered allows steam to remain trapped inside, which helps cook the rice evenly.
Step 7: Check the Rice
After about 45 minutes, carefully remove the foil and check the rice.
The rice should be tender, and most of the liquid should have been absorbed.
If the rice is still firm, cover the dish again and bake for another 10–15 minutes.
Cooking time can vary depending on the type and brand of rice used.
Step 8: Add the Cheese
Once the rice is tender, remove the foil.
Sprinkle the shredded cheddar cheese evenly over the top.
Return the uncovered casserole to the oven and bake for another 5–10 minutes, or until the cheese is completely melted and bubbling.
For a more golden top, you can briefly place the casserole under the broiler, watching it carefully so the cheese doesn’t burn.
Step 9: Rest Before Serving
Remove the casserole from the oven and let it rest for 5–10 minutes before serving.
This short resting period allows the creamy sauce to thicken and makes the casserole easier to portion.
Garnish with fresh parsley if desired.
Serve warm.
Recipe Notes
Choose the Right Rice
This recipe is designed around regular uncooked white rice.
Long-grain white rice works particularly well because it cooks evenly and produces separate, tender grains.
Avoid substituting brown rice without adjusting the liquid and cooking time because brown rice generally requires considerably more liquid and a longer cooking period.
Don’t Skip the Foil
Covering the casserole during most of the baking time is important.
The trapped steam helps cook the rice. Leaving it uncovered throughout the entire baking process can cause the liquid to evaporate too quickly, resulting in undercooked rice.
Watch the Liquid
The rice needs enough liquid to become tender.
If your rice is still firm but the casserole looks dry, add a small amount of warm beef broth, cover the dish again, and continue baking.
Cheese Is Optional
The cheddar cheese isn’t necessary for the casserole to work, but it adds a delicious, creamy, savoury finish.
You can use sharp cheddar, mild cheddar, Monterey Jack, Colby Jack, or a combination of cheeses.
Use Fresh Mushrooms
Fresh mushrooms provide excellent texture and flavour. White button mushrooms or cremini mushrooms both work well.
Slice or chop them fairly small so they distribute evenly throughout the casserole.
Helpful Tips
- Don’t rinse the rice if the recipe doesn’t call for it. The rice needs to absorb the creamy liquid while baking.
- Drain excess beef grease. This keeps the casserole from becoming unnecessarily greasy.
- Brown the beef well. A little browning creates deeper savoury flavour.
- Sauté the mushrooms. Cooking them with the beef and onion helps concentrate their flavour.
- Mix the sauce thoroughly. Make sure the sour cream is evenly incorporated into the cream of mushroom soup and broth.
- Seal the baking dish tightly. This helps prevent moisture from escaping.
- Let it rest before serving. The casserole thickens slightly as it sits.
- Add fresh herbs at the end. Parsley adds a fresh contrast to the rich creamy casserole.
- Don’t overbake. Once the rice is tender, there’s no reason to continue baking for a long period.
- Taste before serving. Depending on the beef broth and soup you use, you may need additional salt or pepper.