Cook the rice according to package directions in a medium saucepan and set it aside once done.
In a large skillet over medium heat, brown the ground beef while breaking it up with a spoon until no pink remains.
Add the diced onion, minced garlic, and diced bell peppers to the skillet. Cook for 5 minutes until the vegetables soften.
Stir in the tomato sauce, Italian seasoning, salt, and black pepper. Let the mixture simmer for 3 minutes.
Mix the cooked rice into the beef and vegetable sauce until evenly combined.
Divide the mixture among four bowls. Sprinkle each with shredded cheddar cheese and top with chopped parsley before serving.