Combine first 7 ingredients in a small bowl; stir well with a wire whisk. Set aside.
Cook tortellini in boiling water 5 minutes. Add cauliflower, and cook an additional 4 minutes. Drain and let cool.
Combine tortellini mixture, bell pepper, and spinach in a large bowl. Add vinegar mixture; toss gently to coat.
Find recipes with ingredients that you have on hand.