Instructions:

1. Preheat your oven to 375°F (190°C) and grease a baking dish.
2. In a large pan, brown the ground beef or turkey over medium heat. Add chopped onions and minced garlic, cooking until onions are translucent.
3. Stir in the shredded cabbage and cook until slightly softened.
4. Add diced tomatoes, cooked rice, dried oregano, salt, and pepper. Mix well and cook for an additional 5 minutes.
5. Transfer the mixture to the prepared baking dish, spreading it out evenly.
6. Top with shredded cheese, covering the casserole.
7. Bake in the preheated oven for 25-30 minutes or until the cheese is melted and bubbly.
8. Garnish with fresh parsley if desired, and serve this easy, hearty casserole!