1. In a large pot of salted boiling water, cook angel hair pasta until it is al dente, about 8 to 10 minutes. Drain and set aside.
2. In a large skillet, heat oil over medium-high heat.
3. Saute the onions and garlic.
4. Stir in the tomatoes, chicken, basil, salt and hot pepper sauce.
5. Reduce heat to medium and cover skillet.
6. Simmer for about 5 minutes, stirring frequently, until mixture is hot and tomatoes are soft.
7. Toss sauce with hot cooked angel hair pasta to coat.