Prepare the Vegetables:

Preheat oven to 180°C / 350°F.

In a large bowl, combine the sliced cabbage, leek rings, grated carrot, and diced bell pepper. Toss lightly with a pinch of salt and pepper.

Cook the Meat:

Heat vegetable oil in a skillet over medium heat.

Add the ground meat, season with salt and pepper, and fry until browned and cooked through. Remove from heat and set aside.

Assemble the Casserole:

In a greased baking dish, layer half of the vegetable mixture.

Spread the cooked ground meat evenly over the vegetables.

Top with the remaining vegetables.

Prepare the Dressing: