Starting with the Bolognese Sauce: In a medium-sized pot sauté the celery, carrots, and onions with a couple tablespoons of olive oil. Once these ingredients become translucent, add in the minced garlic and fry until fragrant..
Add the ground beef into the pot, season with salt and black pepper cook until the meat is thoroughly browned.
Once the meat has browned, add the chopped tomatoes, tomato paste, oregano, sugar, and water; mix and bring the mixture to a boil on high heat, then cover the pot and leave to simmer on medium, heat for about 40 minutes. Add the chopped rosemary, parsley, basil, and thyme and allow to simmer for an additional 30 minutes, until the sauce thickens.
Preparing the Pasta: Fill a large pot with water, add a generous pinch of salt, and bring it to a boil. Once boiling, add the spaghetti and cook it to an al-dente texture according to the instructions on its package. Drain the pasta and reserve a cup of the pasta water if you are going to cook the spaghetti with the sauce.
Serving: There are two ways to serve your spaghetti bolognese. One way is to serve the al-dente spaghetti on a plate and ladle the bolognese sauce over it. Alternatively, you can cook the spaghetti one minute less than the package instructions suggest, then combine the spaghetti with the bolognese sauce in the pot, adding a cup of the pasta water. Toss gently until the spaghetti is fully coated with the sauce.
Finishing Touches: To serve your spaghetti bolognese, sprinkle some parmesan cheese over it for added flavor and creaminess. Enjoy!