Heat the olive oil in a large pot over medium heat. Add the ground beef and cook until browned, breaking it up with a spoon as it cooks. Drain any excess fat if needed.
Add the sliced onions to the pot with the beef. Cook for 8 to 10 minutes, stirring now and then, until the onions soften and turn light golden.
Stir in the minced garlic, dried thyme, and dried rosemary. Cook for 1 minute until the garlic smells fragrant.
Pour in the beef broth and bring the mixture to a simmer. Season with salt and black pepper. Let it cook gently for 10 minutes to blend the flavors.
Add the egg noodles directly to the pot. Simmer for 8 to 10 minutes, stirring occasionally, until the noodles are tender.
Remove the pot from heat. Stir in the chopped parsley just before serving.