Steps
1. Preheat oven to 375°F (190°C). 2. Steam or boil cauliflower until tender, then mash or blend until smooth. 3. In a saucepan, melt butter, add milk, and stir in mashed cauliflower. Season with salt and pepper. 4. Place a slice of ham on each bread slice, top with cauliflower mixture and Gruyere cheese. 5. Bake for 10-12 minutes until cheese is melted and bubbly. 6. Cut into bite-sized pieces and serve warm.