Preheat the oven to 425°F (220°C) and line a baking tray with parchment paper.
In a large bowl, combine the olive oil, The Holly Tree Organic Curry Powder, The Holly Tree Organic Turmeric Powder, The Holly Tree Organic Cumin Powder, The Holly Tree Organic Black Pepper Powder, and Salt.
Add the cauliflower florets and toss until they are evenly coated with the spice mixture.
Arrange the florets in a single layer on the prepared baking tray.
Roast for 25–30 minutes, turning halfway through, until the cauliflower is tender with golden, caramelized edges.
Transfer the roasted cauliflower to a serving platter.
Drizzle with fresh lemon juice and garnish with chopped parsley.
Finish with a light sprinkle of The Holly Tree Organic Curry Powder before serving for an extra burst of flavor.