In a medium bowl, stir together oil, lime juice, garlic, and Mae’s Chipotle Cocoa. Toss with chicken slices and marinate in fridge for at least 3 hours.
In a medium frypan over medium - high heat, sauté onions and bell peppers in some oil until lightly browned; set aside.
Cook chicken about 5 minutes until cooked and no longer pink.
In a large frypan over medium heat, heat some oil. Once heated, place a tortilla shell and top with cheese, onions and peppers, chicken, and green onions.
Cook until shell is browned, about 5 minutes. Serve with sour cream and salsa roja.