I use thyme and rosemary in this soup because I love how they pair with cauliflower, but you can substitute with fresh sage or oregano. If you don't want a spicy kick at the end, try a mild chile flake like Aleppo pepper in place of red pepper flakes. Aleppo pepper is a beautiful coarsely ground red pepper with a subtle fruity yet earthy tang. It's commonly used in many Middle Eastern cuisine and originally hails from Aleppo, Syria.