- Sauté onions, carrot, red bell pepper and celery in 2 tablespoons of butter until softened. 
- Add lemon juice, water and cauliflower to the pan. 
- Stir to mix all vegetables together and cover the pan. 
- Steam on low for about 10 minutes or until cauliflower is tender. 
- Stir in cream cheese, 1/2 cup Parmesan cheese and salt to taste into the cauliflower. 
- In a bowl, mix panko crumbs, 1/4 cup Parmesan cheese, 1 teaspoon salt and 1 tablespoon melted butter and sprinkle on top of cauliflower. 
- Broil for 1 minute or so (watch it closely) until the topping is browned