Pre-heat oven to 425°F. Line a baking sheet with parchment and set aside.
Toss the sweet potatoes and other veggies with olive oil, salt and pepper.
Arrange all veggies on the baking sheet, and bake for 15 minutes.
Give the veggies a stir and return to the oven for another 10 or so minutes, until they are easily pierced with a fork.
Pierce sausage with a knife and bake for 10-15 minutes, turning every 2-3 minutes, until cooked through.
Shake together all ingredients for the tahini dressing. Add additional water until thinned to your desired consistency.
Serve hot with dressing on the side, or, if prepping the night before, let food cool and then pack up into tupperware.