The best pasta choice for the following recipe is spaghetti or another long, thin shape.
Caramelized onions add depth to the spicy tomato sauce.
Discard the leaves from the cauliflower. Remove the core and stalks and break the cauliflower into small florets. Slice the florets into small, bite-sized pieces. There should be about 4 cups of florets. Heat 2 tablespoons oil and the butter in a large saute pan.