Hi all!
Wilso, I getting that your goal is a basic, traditional meat sauce,..made easy by using a prepared tomato sauce. It can be done easily, and quite come out really good,..just make sure that your using a good quality sauce.
I would start by cooking some ground beef, and some hot italian sausage (taken out of the casing, and broken up), brown the meat, add some minced garlic and a bay leaf. Add the sauce and simmer on med high for about ten minutes to soften the meat, and thicken the sauce. salt and pepper to taste.
A note on carrots and tomato sauce:
My nana always put a whole carrot in her sauce while it was cooking, removing it just before serving. I always wondered why,
I found out later on that the natural sugars in the carrot, balance the acid in the tomatoes. Some cooks add sugar to balance it, I've found that the carrot works just as well