Preheat oven to 425 F. Place sheet pan in oven to preheat.
For slaw dressing, in a blender combine: 1/2 cup cilantro, 2 T lime juice, 2 T water, 1/2 tsp cumin, 1 avocado, 1/2 tsp salt and 1/4 tsp pepper.
Toss dressing w/ coleslaw mix.
Place tilapia fillets on hot sheet pan and bake ~12mins until flaky.
If using cauli rice, place in medium sauté pan w/ 1 T olive oil over med-high heat. Cook, stirring until desired texture (~4-5 mins).
Serve tilapia over slaw & cauli rice (if using).