3 cauliflower melted onions seeds Recipes

head cauliflower , about 500-600g, red onion, peeled, olive oil, rosemary, finely chopped, eggs, chopped basil, plain flour, baking powder, ground turmeric, grated parmesan cheese or 200 g other mature cheese, salt and black pepper, melted butter, for greasing (if necessary), black sesame seeds (optional) or 2 tsp black onion seeds (optional) or 2 tsp plain sesame seeds (optional)

unsalted butter, vegetable oil, two 2 1/2-lb heads of cauliflower, cut into 2-inch florets, salt and freshly ground pepper, sweet onions , halved lengthwise and thinly sliced crosswise, curry powder, yellow mustard seeds, fresh lemon juice, chopped cilantro