Trim leaves off cauliflower, leaving stem intact, and slice into 3/4 inch slices.
Slice garlic.
Place both in a bowl and sprinkle coriander seeds, caraway seeds, salt, pepper, chili flakes lemon zest and 2 teaspoons olive oil.
Toss to coat well. Grease baking sheet with 1 teaspoon olive oil, spread out cauliflower mixture so and roast in oven for 20-25 minutes, or until fork tender and lightly browned.
Arrange on a platter and sprinkle with chopped Italian parsley and a little more lemon zest.