Potato-Spinach Casserole With Beef - Kookmutsjes

Ingredients

• 1100 g potatoes
• water
• salt
• 40 g butter
• 90 ml milk
• 4 g salt
• 1 g black pepper powder
• 125 g fresh spinach
• 25 g butter
• 25 ml olive oil
• 500 g ground meat
• 5 g ras el kouzina
• 2 g cayenne pepper powder
• 3 g onion powder
• 2 g cumin powder
• 2 g dried parsley
• 125 g yellow onion
• 1 beef stock cube
• 25 g sweet soy sauce
• 200 ml water
• 7 g cornstarch
• 100 ml heavy cream
• grated cheese
• 1.5 g onion powder
• 10 g sweet soy sauce