01 -
Prepare the long grain rice following package instructions until tender. For enhanced flavor, substitute water with beef broth. Once cooked, let the rice cool slightly before proceeding.
02 -
Heat a large skillet over medium heat. Add ground beef and break it into small crumbles while cooking. Continue until no pink remains, approximately 7 to 8 minutes. Drain excess fat thoroughly.
03 -
In a large bowl, whisk together cream of mushroom soup and sour cream until smooth and free of lumps to create the binding base.
04 -
Add the cooked rice, browned beef, and diced onion to the creamy sauce. Fold gently until evenly incorporated. Season with salt and black pepper to personal taste, ensuring the mixture is moist but not runny.
05 -
Transfer the mixture into a greased 23x33 cm baking dish. Spread evenly and top generously with shredded cheddar cheese. Bake in a preheated oven at 190°C for 25 minutes until cheese is melted, golden, and bubbling.
06 -
Allow the casserole to rest for 5 minutes after baking to settle flavors and facilitate serving. Serve warm, optionally accompanied by a green salad or steamed vegetables.