Step 1 of 9
Cut chicken breasts into bite-sized pieces.
Step 2 of 9
In a small bowl, mix together chili powder, cumin, paprika, garlic powder, cayenne pepper, and a pinch of salt.
Step 3 of 9
Toss chicken pieces with the spice mixture until evenly coated.
Step 4 of 9
Heat olive oil in a large skillet over medium-high heat.
Step 5 of 9
Add seasoned chicken and cook for 12-15 minutes, stirring occasionally, until chicken is cooked through and slightly charred.
Step 6 of 9
While chicken cooks, make lime crema by whisking together sour cream and lime juice in a small bowl.
Step 7 of 9
Warm tortillas in a dry skillet or microwave.
Step 8 of 9
Assemble tacos: place chicken on tortillas, top with lettuce, tomatoes, cheese, and cilantro.
Step 9 of 9
Drizzle with lime crema and serve with lime wedges on the side.