Place the beets, Brussel sprouts, pears, and potatoes on a baking sheet. Drizzle with the olive and season with salt and pepper. Toss to coat. Bake until cooked through about 15-20 minutes (depending on the size of your vegetables).
In a small bowl mix together the vinaigrette ingredients.
Put the roasted vegetables, spinach and cheese in a large bowl. Drizzle with the dressing. Toss gently to combine. Season with more salt and pepper if needed.