01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Place halved tomatoes cut side up on the prepared baking sheet. Evenly distribute garlic slices over the tomatoes.
03 - Drizzle the tomatoes with extra-virgin olive oil, then sprinkle sea salt, black pepper, and dried oregano or thyme evenly over them.
04 - Roast in the oven for 25 to 30 minutes until the tomatoes are caramelized and edges appear slightly shriveled.
05 - Remove from oven. If desired, drizzle balsamic vinegar over the tomatoes and scatter torn fresh basil leaves before serving.