Chili-Lime Cauliflower Steaks with Coconut Tahini Sauce & Cashews

1 large cauliflower
1 tbsp olive oil
1 Tbsp chili powder
Zest of 1 lime
1 tsp lime juice
1/3 cup toasted cashews
¼ - ½ tsp salt

Wash and pat dry cauliflower. Slice into thick steaks, with each cauliflower making about 3-4 large pieces. Heat olive oil in a large cast iron pan over medium heat. Sprinkle each steak with chili powder (more or less, depending on how much spice you like) and salt, and cook about 5-8 minutes on each side. Sprinkle with lime zest and lime juice and serve with toasted cashews and coconut sauce. 
Coconut Tahini Sauce (Based on@food52 recipe)
1/4 cup full fat coconut milk
⅓ cup tahini 
1 Tbsp lime juice
½ tsp salt
¼ tsp pepper
Pinch of garlic powder

Heat tahini and coconut milk together for 30 seconds to a minute in the microwave, then whisk in the lime and seasonings.