Heat a grill pan over medium-high heat. Coat pan with cooking spray. Sprinkle 1/2 teaspoon salt and 1/4 teaspoon chipotle chile powder evenly over chicken; add chicken to pan. Cook for 6 minutes on each side or until done, and remove from heat.
Combine remaining 1/4 teaspoon salt, cucumber, tomatoes, onion, and remaining ingredients in a medium bowl, tossing well. Serve with chicken.
OH WOW! After making this numerous times now, I wouldn't change a thing! My husband asks for this dish, often! Every time avocados go on sale, I grab extras to make this dish. This has become my new go to recipe. psjohnso - I can't wait to try it on tuna. Thanks for the suggestion.
My fiance and I enjoyed this dish and will likely have it again! Very easy to make. The only substitution I made is that I did not have chipotle spice, so I used cayenne red pepper, salt and pepper on the chicken. The salsa mixture is tasty. We served it with baked tortilla chips.