Cheesy Mushroom Beef & Rice Bake

Step 3: Cook the Mushrooms

To bring out the earthy flavor of mushrooms, sauté them separately in the same skillet. Add a little butter if needed and cook until golden brown and slightly caramelized. This prevents them from releasing too much water in the casserole.

Step 4: Build the Creamy Base

Reduce the skillet heat and stir the beef, onions, and mushrooms together. Add the cream of mushroom soup and beef broth, mixing until smooth and creamy. This forms the rich base that will coat the rice. Taste and adjust seasoning as needed.

Step 5: Combine and Assemble

In a large mixing bowl, combine the cooked rice with the beef-mushroom mixture. Stir in half of the cheddar and mozzarella cheese. Transfer everything into a greased 9×13-inch baking dish, spreading it out evenly.

Step 6: Top with Cheese

Sprinkle the remaining cheese evenly over the top. This creates a bubbly golden crust that makes the dish irresistible.

Step 7: Bake to Perfection

Preheat your oven to 375°F (190°C). Bake uncovered for 25–30 minutes, or until the casserole is hot, bubbly, and the cheese is melted and lightly browned.

Step 8: Garnish and Serve

Once baked, let it rest for about 5 minutes to set. Sprinkle with freshly chopped parsley for a pop of color and freshness. Serve warm with a side salad or roasted vegetables.

Tips for Success

• Rice options: Use long-grain white rice for a fluffier texture, or brown rice for a nuttier flavor (just parboil it longer).
• Cheese variations: Try Monterey Jack, Gruyère, or even a smoky gouda for a different twist.
• Vegetable add-ins: Spinach, bell peppers, or peas can be added for extra nutrition and color.
• Make-ahead option: Assemble the casserole ahead of time, refrigerate it, and bake when ready. Just add 10 extra minutes of baking time.

Final Thoughts

The Cheesy Mushroom Beef & Rice Bake is more than just a casserole — it’s a heartwarming dish that combines simple pantry staples into something rich and satisfying. Whether you’re feeding a family, meal prepping for the week, or looking for a crowd-pleaser, this recipe is sure to deliver.

Warm, cheesy, and loaded with flavor, it’s the kind of meal you’ll want to make again and again.

Would you like me to also create a quick one-pan stovetop version of this recipe (for when you don’t want to turn on the oven), or do you prefer keeping it as a baked casserole?