Balsamic Marinated Roasted Beets

Slightly modified from Melissa's.
Ingredients:
1/2 cup balsamic vinaigrette (balsamic vinegar and olive oil)
1 pound peeled beets, chopped into cubes
1 tablespoon olive oil
1/2 teaspoon salt
1/2 teaspoon fresh ground black pepper

Place the vinaigrette and beets in a large bowl. Cover and refrigerate for an hour.
Preheat oven to 425º.
Lightly oil a sheet pan and add the beets in a single layer. Season with salt and pepper and roast in the oven until heated through and browned, about 20-35 minutes.
Makes 6 servings.