Preheat oven to 450 degrees F.
Mix all ingredients for the sauce in a mixing bowl. Set aside.
Place chopped cauliflower florets, chopped dates, and red onions on a parchment paper-lined baking sheet.
Add olive oil, salt, and balsamic on top of cauliflower, onions, and dates. Use clean hands to massage into veggies.
Then add sauce on top and use clean hands to massage evenly into veggies.
Place baking sheet in the oven and bake for 25 minutes or until florets are golden brown and cooked through.
Garnish with parsley or fresh mint (optional) or thinly sliced almonds (optional).
Serve warm or room temperature.