Yaki Keema Curry (Japanese Baked Curry with Egg & Cheese)

Bahan-bahan (2 porsi)

• ¾ lb ground meat
• ½ onion
• 3 inches carrot
• 1 cube Japanese curry roux ((or see How to Make Japanese Curry Roux at home))
• 1 Tbsp tonkatsu sauce
• 1 Tbsp ketchup
• 1 cup water
• ¼ tsp Diamond Crystal kosher salt
• freshly ground black pepper ((to taste))
• 1 Tbsp neutral oil
• 2 servings cooked Japanese short-grain rice ((about 2 large rice bowls))
• 1 large egg (50 g w/o shell)
• 1 cup shredded mozzarella cheese
• 1 Tbsp butter ((for greasing the dish))
• a few sprigs Italian parsley ((for garnish))