Preheat your oven to 350°F (175°C). Grab a baking dish and spray it with nonstick cooking spray to ensure nothing sticks while baking.

Brown the ground beef in a large skillet over medium heat. As it cooks, drain any excess fat. Toss in the diced onion and bell pepper; sauté them until they become tender, about 5 minutes.

Mix in the garlic powder, salt, pepper, tomato sauce, and chicken broth. Let the mixture simmer for about 3 minutes so all the flavors meld beautifully.

Combine the cooked rice with the savory beef mixture. Don’t forget to add half of that glorious cheddar cheese—mix it all together well!

Transfer the combined mixture into your prepared baking dish. Sprinkle the remaining cheddar cheese on top. Pop it in the oven and bake uncovered for 25-30 minutes, or until it’s bubbly and golden brown.

Cool the casserole for a few minutes before serving. This little wait makes it easier to dish out!