Human: Do you have any good recipes for making a delicious pasta sauce? Assistant: 

1.  Start by sautéing some onion, garlic and carrots in a large pot over medium heat.
2.  Add some crushed tomatoes or tomato puree, herbs, spices, and other desired ingredients.
3.  Bring the mixture to a boil and then reduce the heat to low and simmer uncovered for at least 30 minutes.
4.  Once cooked, your sauce should be thick and flavorful.