I really like salads with oak leaf lettuces. I love the shape of the leaves and enjoy the flavor/texture combination. This salad has lots of color to it, and the beets, carrots, and creamy blueberry dressing all have earthy notes as well as bright top notes to contrast and compliment each other. Although I usually dress the lettuces in my salads in a bowl before serving, I like the colors of the lettuces, so drizzle the dressing over the leaves once they are on the plate for this salad. If you prefer more dressing, just put the leaves into a bowl with some dressing and toss to coat, then plate the lettuces and top with the rest of the ingredients.