Combine olive oil, lime juice, chopped chipotle chilis, adobo sauce, garlic powder, and salt in a bowl, then stir in the chicken strips. Cover and chill for a minimum of 2 hours or overnight if possible.
Warm a large skillet over medium-high heat, then remove the chicken from its marinade and cook in the pan, stirring occasionally until fully cooked, about 5 minutes. Remove from heat and set aside.
Bring a pot of water to a boil with salt and add the rinsed rice. Once boiling again, lower the heat, cover, and simmer until the water is absorbed and rice is tender, about 15 to 18 minutes. Uncover, fluff with a fork, and stir in lime zest, lime juice, chopped cilantro, and salt to taste.
Prepare bowls by laying down a base of the cilantro lime rice and chopped romaine lettuce. Top each bowl with cooked chicken, diced tomatoes, avocado or guacamole, thawed corn, black beans, and chopped red onion.