Toss chili powder, garlic powder, onion powder, crushed red pepper flakes, dried oregano, paprika, cumin, sea salt, black pepper in a medium bowl.
Coat each boneless chicken breast with the spice rub to add flavor quickly, gives meat a savory crust.
Add chicken breasts/thighs and marinade chicken for at least 30 minutes (or overnight) to prevent chicken from drying out and to boost the flavor
Heat a grill pan over medium-high heat. Coat pan with cooking spray.
Add chicken breast to pan; cook 4-6 minutes on each side or until done.
Let chicken rest for about 5 minutes before slicing
Serve on rice with beans, tomatoes, lettuce, grilled corn, onion, cilantro, lime wedges and salsa