Heat a large skillet over medium heat. Add ground beef and cook until brown. Break it into small pieces. Stir often for even cooking. Drain extra fat before moving forward.

Add chopped onion and garlic to the skillet. Cook until soft and fragrant. This takes about five minutes. Stir well so nothing burns and everything cooks evenly.

Add frozen mixed vegetables to the skillet. Stir everything together. Cook for about five minutes until vegetables are heated through. This adds color and nutrition to the dish.

Add salt, black pepper, and paprika. Mix well so flavors spread evenly. Taste and adjust seasoning if needed. Turn off the heat and let it cool slightly.

In a mixing bowl, add milk, flour, and eggs. Whisk until smooth. Make sure there are no lumps. This batter will form a soft crust while baking.

Grease a baking dish with butter. Spread the beef mixture evenly in the dish. Sprinkle shredded cheese on top. Pour the batter evenly over everything.

Preheat oven to 180°C (350°F). Place the dish in the oven. Bake for about 30 to 35 minutes. The top should be golden and set in the center.

Remove from oven and let it cool for ten minutes. This helps it set properly. Slice into portions and serve warm for best taste.