This yogurt based marinade is amazing!  It could be used for many other veggies or chicken or fish, too! 

1 tablespoon oil
1 head caulilfower
1 1/2 cups greek yogurt (plain)
juice of 1 lime + zest
cayenne/chili powder to taste
1 tablespoon cumin
2-3 garlic cloves, minced
1 teaspoon curry powder
salt and pepper to taste

Combine ingredients except oil and cauliflower. Dunk cauliflower into marinade and smear it over the surface evenly. Bake on greased sheet using oil at 400 until surface is dry and browned about 30-40 minutes (or longer, but check fairly frequently to avoid burning). Marinade should form crust on outside of cauliflower. Let cool slightly then slice into wedges.

Note: We didn't use greek yogurt so the marinade didn't stick very well to the surface of the cauliflower so it didn't make a crust. Still yummy though and served with leftover marinade.