Add water to large saucepan on high heat for pasta. heat oil in skillet over high heat 1 minute. stir in garlic and mushrooms. cook and stir a couple of minutes, or until mushrooms are soft. reduce heat to medium, add tomatoes, basil leaves, salt and pepper, and stir to blend ingredients well. cook 6 minutes, stirring occasionally.
While sauce cooks:
add angel hair pasta to boiling water in saucepan and cook according to package. drain.