4 Anaheim chiles or Italian frying peppers, or 2 green bell peppers (about 12 ounces total), cut into strips
1/2 cup fresh Thai basil leaves* or regular basil leaves
Cook noodles in large pot of boiling salted water until tender but still firm to bite, stirring frequently. Drain.
Meanwhile, heat oil in heavy large pot over medium-high heat. Add garlic and Thai chiles; sauté 30 seconds. Add chicken and next 4 ingredients and sauté until chicken is cooked through, about 4 minutes. Add noodles, tomatoes, and Anaheim chiles; toss to coat. Transfer to large platter, sprinkle with basil leaves, and serve.
*Thai Basil is purple on one side. Available in the Asian foods section or produce section of some supermarkets, and at Southeast Asian and some Asian markets.