Place the mint, basil, garlic, lemon juice, salt and pepper in a blender or a food processor and process to blend, scraping down the sides. Drizzle in the olive it until it becomes a loose paste, adding as much as needed to get to the texture and concentration you like. Pulse in the Parmesan.
Drizzle and dollop over tomatoes. Consider putting the tomatoes on some amazing grilled or toasted bread.