Clean and wash the sweet potatoes and mix them in a bowl with 3 tbsp. oil and 1/2 tsp. salt. Spread the sweet potatoes on a baking tray and bake in a preheated oven (electric cooker: 225 °C/ circulating air: 200 °C/ gas: see
manufacturer) Bake for 25-30 minutes.
Meanwhile wash the chicken filet, dab dry and cut into small pieces. Mix the chicken pieces, 2 tablespoons of oil and 1 pinch of salt in a bowl. Heat a large pan, fry the meat for 3-4 minutes, turning it over, and take it out.
Add 1 tablespoon of oil and frozen vegetables to the pan, bring to the boil and simmer for 6-8 minutes. Put the chicken back into the pan about 2 minutes before the end of the cooking time. Remove the pan from the heat, stir the cream cheese and 4-5 tbsp. water until smooth and stir into the chicken and vegetable mixture.
Season to taste with salt and pepper.
Take the sweet potatoes out of the oven and cut them lengthwise. Break open the sweet potatoes and fill them with the vegetable pan. Crumble the feta with your hands and pour over the filling.