For Bolognese, warm a medium saucepan or shallow pan over medium heat. Add a generous glug of olive oil. Sauté onion until translucent, about 10 minutes. Take it slow in these steps so that you build a flavorful sauce. Then, add the carrot and celery and sauté for, at least, another 10 minutes until everything is soft and well combined. Throw in the herbs you’re using. Don’t add too many as you don’t want it to be too herbaceous! Just enough to complement the meat.