In a large pot, combine 3 cups water, pasta, crushed tomatoes, cheese pieces, grape tomatoes, onion, basil, garlic, salt and pepper; stir to combine.
Bring to a boil over medium-high heat, then reduce to a simmer ad cook uncovered until the pasta has softened, 25 to 30 minutes. Much of the water will boil out.
Serve drizzled with balsamic vinegar. If desired, garnish with chopped basil and Parmesan.
Notes
For bigger Italian flavor, double the amount of garlic, onion and basil in the recipe.