Cook the rice according to package directions. When the rice is done cooking, toss in the chopped cilantro and lime juice. Set aside and keep warm.
In a medium size bowl combine the chipotle chili powder, cumin, brown sugar, paprika, onion powder, garlic powder, chili powder, salt and pepper. Add the olive oil and lime juice and whisk together with a fork. Toss with the chicken strips. Set aside while you make the crema.
In a food processor or blender combine the greek yogurt, avocado, garlic, lime juice, adobo sauce, honey, crushed red pepper and salt. Puree until smooth. Add a tablespoon or two of water if it is a a little thick. Taste and add more salt if desired. Set a side.
Heat a large pan or wok until fairly hot. Arrange the chicken (marinade and all) in the pan and cook on high heat until the chicken are golden brown and the chicken begins to caramelize. Turn the chicken on the other side and let them cooked until the other side is just cooked through. Then add the sliced peppers and saute on high heat for about 3 minutes or until slighty soft.
To serve: In a medium sized bowl, add rice and topped with chicken fajitas and lettuce. Add a little cheese to each bowl and then drizzle with the avocado chipotle crema. Top with crushed tortilla chips if desired.