Pre-heat oven to 450 degrees F.
Spread out cauliflower on a large cookie sheet. Drizzle with olive oil and sprinkle some Kosher salt overtop.
Once the oven comes to temperature, roast the cauliflower for about 16 minutes and stir halfway.
When the cauliflower is about 5 minutes from being done, heat 1 tablespoon of olive oil in a dutch oven or heavy bottom pot. Add shallots and ginger, stirring frequently for 2 minutes until you really smell the ginger. Add curry paste (more if you like it really spicy) and stir a few times while you use the heat to bring out the flavours, about 1-2 minutes more.
Then add the roasted cauliflower, chickpeas, coconut milk, broth, tomato sauce and Kosher salt. Give everything a good stir and let everything simmer for about 10 minutes. Taste and add salt as needed.
Serve nice and hot with parsley, lemon wedges and top with fresh ground pepper.