1Cook and drain pasta as directed on package.
2Meanwhile, in 12-inch skillet, cook nuts over medium heat 2 to 3 minutes, stirring constantly, until toasted. Remove from skillet.
3Add 1 tablespoon of the oil and the garlic to skillet. Cook and stir over medium-high heat 1 minute. Stir in mushrooms and onions. Cook about 2 minutes, stirring occasionally, until crisp-tender.
4Stir in tomatoes, pasta, basil, salt and remaining 1 tablespoon oil. Cook over medium heat, stirring occasionally, until heated through. Spoon into serving dish; sprinkle with nuts.