Preheat your oven to 375°F (190°C). Grease a 9×13-inch casserole dish and set aside.

Heat the olive oil in a large skillet over medium heat. Add the diced onion and cook until softened, about 3 minutes. Stir in the garlic and cook for another 30 seconds, until fragrant.

Add ground beef to the pan. Brown the beef, breaking it up with a spoon, until fully cooked and no longer pink. Season with salt, pepper, and paprika.

Add the chopped cabbage to the skillet, tossing to combine. Cook for 6-8 minutes, stirring occasionally, until the cabbage has softened slightly.

Pour in the heavy cream and sprinkle in the shredded cheddar cheese. Stir everything together until the cheese melts into a creamy sauce and everything is well combined.

Transfer the mixture to the prepared casserole dish, spreading it into an even layer.

Sprinkle the grated Parmesan cheese over the top.

Bake in the preheated oven for 20-25 minutes, until bubbly and golden brown on top.

Let the casserole cool slightly before serving. Enjoy!