Preheat oven to 350F degrees and spray a 9"x 13" casserole dish with nonstick cooking spray.
In a large skillet (with high sides) over medium-high heat, add ground beef, diced green peppers and onion. Cook and crumble the ground beef until no longer pink and the peppers and onions are soft. Turn off heat.
Drain excess grease from meat and put back into the skillet. Add in minced garlic, salt, pepper, Italian seasoning, tomato paste and diced tomatoes, beef broth and uncooked rice.
Stir this mixture really well and place into prepared baking dish.
Cover the baking dish with aluminum foil and put into preheated oven. Bake for about an hour. Stir the mixture halfway through to ensure all the rice gets evenly cooked. Casserole is done once the rice is completely cooked and soft.
Remove the casserole and top with shredded cheese. Place back into the oven for about 5-7 minutes for the cheese to get completely melted.
Try using one pound ground beef and one pound ground Italian sausage for a kick of flavor.
If you don't like it quite as "beefy" - just use one pound of meat instead of two.
A can of petite diced tomatoes can be substituted for the regular diced tomatoes. You can also find diced tomatoes that have basil, oregano and garlic seasoning which will also add more flavor.
Don't like green bell peppers? Try yellow or orange peppers for a milder flavor.
This casserole would be delicious served with a side salad or maybe some GARLIC BREAD.