You may use broccoli
for this recipe. Or half broccoli half cauliflower. The color is truly exceptional. The recipe easily becomes vegetarian. Just leave the bacon out. Or substitute with chopped dried tomatoes. One may add some milk
or even cream to the mixture. Know it does alter the taste. Cauliflower is rather delicate in taste and is easily altered. If that is the purpose when adding milk or cream, ok.The cream can be stored for a couple of days in the fridge. Better preparing it fresh. When boiling more cauliflower than needed for the recipe, use it for other purposes.