Pre-heat oven to 400 degrees F.
Wash veggies and dry them thoroughly with paper towels.
Dice vegetables into 1/2 inch or 1-inch pieces and chop pitted prunes in half.
Lay vegetables and prunes on a lined baking sheet.
Use hands to massage harissa paste, salt, and olive oil into veggies and prunes.
Roast in the oven for 40-50 minutes or until caramelized and tender.
Place veggies in a serving tray or bowl.
Drizzle Tahini dressing all over veggies. Serve immediately!