Besides the cilantro, cumin, and red pepper flakes used in the recipe, you can also try these other herbs and spices: - Garlic powder - Onion powder - Smoked paprika - Chili powder - Thyme (dried or fresh) - Parsley (dried or fresh) When adding herbs and spices to the salad, it's important to start with a small amount and taste as you go. This will help you to avoid over-seasoning the salad. Toss the sweet potatoes in the seasonings and olive oil before roasting. If you're using fresh thyme leaves or fresh parsley, add them to the salad just before serving.