I love to use cherry tomatoes in this recipe. They are simple to prepare and cook quickly due to their small size. If you like a little spice, a pinch of red pepper flakes will liven up the sauce without masking the fresh tomato or polenta’s flavor. Basil makes a lovely garnish for this dish when it is in season. Parmesan cheese is equally delicious and available year round, making it the perfect garnish no matter what time of year this dish is served.