In a large bowl, mix olive oil, lime juice, chipotle chilies, adobo sauce, garlic powder, and salt.
Add chicken strips and toss to coat evenly. Cover and marinate in the refrigerator for at least 2 hours or overnight.
Heat a large pan over medium-high heat. Cook the marinated chicken for about 5 minutes, stirring occasionally, until fully cooked. Set aside.
In a pot, bring water and salt to a boil. Add rice, reduce heat, cover, and simmer for 15–18 minutes until tender.
Fluff rice with a fork, then mix in lime zest, lime juice, cilantro, and salt to taste.
To assemble the Chicken Burrito Bowl, layer rice and lettuce in a bowl.
Top with cooked chicken, tomatoes, corn, black beans, red onion, and avocado or guacamole.