Cut vegetables such as onion, potato, and broccoli into bite-sized pieces.
Mince garlic and prepare protein ingredients like ham or chicken.
Melt butter in a pan and sauté the onion and garlic.
Add potato, broccoli, and ham (or chicken), and stir-fry together.
Pour in milk and heavy cream, then season with salt and pepper.
Transfer the sautéed ingredients into an oven-safe dish and top with mozzarella and parmesan cheese.
Bake in a preheated oven at 200°C for 15–20 minutes until the cheese is golden brown.