Heat olive oil in a large skillet over medium heat. Cook onion and carrot until softened. Add garlic and cook briefly. Add ground beef and cook until browned. Stir in tomato paste and cook for 1–2 minutes. Add crushed tomatoes, Italian seasoning, salt, and pepper. Simmer for 20–25 minutes. Cook gnocchi according to package instructions and drain. Add gnocchi to the sauce along with cream and Parmesan. Stir until combined and heated through. Garnish with fresh herbs and serve.