Preheat your oven to 400°F.
Dice the chicken breast into bite-sized pieces.
In a medium skillet, heat the olive oil over medium heat. Sauté the chicken until lightly browned, then remove and set aside.
In the same skillet, add the chopped carrots, green peas, celery, onion, and minced garlic. Sauté for about 5 minutes until the vegetables begin to soften.
Return the chicken to the skillet. Sprinkle the whole wheat flour over the mixture and stir to coat evenly.
Slowly pour in the low-fat milk, stirring continuously until the sauce thickens and becomes creamy. Season with salt and pepper to taste.
Transfer the creamy chicken and vegetable mixture into an oven-safe dish.
For the golden biscuit topping, in a small bowl combine the almond flour and baking powder. Add a few drops of water until a soft dough forms.
Crumble the biscuit dough evenly over the pot pie mixture.
Bake in the preheated oven for 15-20 minutes or until the topping is lightly golden and the filling is bubbling.
Allow the pot pie to cool for a few minutes before serving.