1 teaspoon pure chile powder
1 teaspoon kosher salt
1/2 teaspoon ground cumin
1/2 teaspoon onion powder
1/4 teaspoon garlic powder
1 tablespoon cornstarch
1/4 cup water
3 tablespoons extra-virgin olive oil
1 whole skinless, boneless chicken breast (about 1 pound), cut into 1/2-inch strips
1 green bell pepper—cored, seeded and cut into thin strips
1 medium onion, thinly sliced
2 tablespoons fresh lime juice, plus lime wedges for serving
8 flour tortillas, warmed in the microwave
Shredded lettuce, shredded cheddar cheese, salsa and sour cream, for serving