In a medium bowl, prepare the topping by combining the fresh and sun-dried tomatoes with 2 tablespoons (30 ml / 1 fl oz) of the olive oil, the vinegar, and the fresh basil.
Season with salt and pepper to taste and toss gently to combine.
Set aside while you cook the polenta.
Heat the remaining 2 tablespoons (30 ml / 1 fl oz) of olive oil in a large skillet over medium heat.
Add the polenta slices in a single layer and cook until golden brown and crisp on both sides, about 3-4 minutes per side.
To serve, arrange the warm polenta slices on a platter and top generously with the tomato mixture.
Add a minced garlic clove or a pinch of red pepper flakes to the tomato mixture for an extra layer of flavor.