Preheat the oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Peel the plantain and slice it into half-inch rounds, then toss them in a bowl with olive oil and a pinch of sea salt.
Spread the plantain rounds in a single layer on the baking sheet and roast for 18 minutes until they are caramelized and golden.
Season the chicken breast with garlic powder, sea salt, and black pepper, then grill over medium heat until the internal temperature reaches 165°F.
Allow the chicken to rest for five minutes before shredding it into bite-sized pieces using two forks.
Rinse the black beans thoroughly and warm them in a small skillet over low heat with a splash of water to keep them moist.
Whisk the plain Greek yogurt and lime juice together in a small ramekin until the mixture is smooth and pourable.
Build your bowl by layering fresh baby spinach at the bottom, followed by the shredded chicken, warm black beans, and roasted plantains.
Finish the dish by drizzling the zesty lime crema over the top for a bright burst of flavor.