This is a substantial salad that could serve as a light supper, and is about the interplay of the sweet, fruity, and acid, and soft components of the peppers, onions, and tomatoes in contrast with the crunchy, salty, slightly fatty roast pancetta wheel. Red Oak leaf lettuce is perfect for the bed. If you do not want to make the basil oil, substitute basil shreds and just use olive oil and balsamic vinegar. In lieu of pancetta, you could use buffalo mozzarella or goat cheese rounds. See Chef’s Notes for ideas.