If you are working with large chicken breasts, you want to slice them across so that you get around 1/2-inch thick pieces.
Blend cilantro, lime juice, cashew cream (or sour cream/yogurt), olive oil, chili powder, cumin, salt, ancho chile powder, and garlic powder until smooth. In a bowl, marinade chicken with the sauce. Cover with plastic wrap and refrigerate overnight. If you are pressed for time, you can marinade the chicken for 30 minutes.
When you are ready to cook the chicken, wipe off most of the excess marinade and season chicken breasts with a pinch of salt.
Heat a large skillet with 2 tablespoons olive oil over medium-high heat. Place two chicken breast onto the skillet and cook each side for 3 to 4 minutes. When the chicken breasts are done, stack them and wrap in foil while you cook the remaining chicken breasts, vegetables, and plantains.
To cook the vegetables, add an 1 tablespoon of olive oil to the skillet and add all the vegetables with a pinch of salt. Sauté vegetables for 3 minutes. Serve on a plate.
To prepare the plantains, peel each plantain and chop them into 5 or 6 sections that are about 1 inch wide. Slice each section in half.
In a sauté pan, heat 2 tablespoons of coconut oil over medium heat. Place the plantains on the pan, cut side down. Cook and flip the plantain pieces until most sides are a deep golden brown.
Slice up the chicken breasts and enjoy with the vegetables and plantains!