Creating the 5-Ingredient Ground Beef Casserole is easy if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Brown the Beef: In a skillet over medium heat, brown the ground beef until fully cooked. Drain any excess fat.
3. Combine Ingredients: In a large bowl, mix together the cooked beef, cooked rice, cream of mushroom soup, and frozen mixed vegetables.
4. Add Cheese: Stir in ½ cup of the shredded cheese into the mixture, saving the remaining cheese for topping.
5. Transfer to Baking Dish: Pour the mixture into a greased 9×13 inch baking dish, spreading it evenly.
6. Top with Cheese: Sprinkle the remaining cheese on top of the casserole.
7. Bake: Place the baking dish in the preheated oven and bake for 25-30 minutes or until the cheese is melted and bubbly.
8. Rest and Serve: Remove from the oven and let it cool for a few minutes before serving.

Following these steps will guide you in making this incredible 5-Ingredient Ground Beef Casserole with ease.