Preheat oven to 400 degrees
Sprinkle chicken thighs with paprika, sea salt and black pepper. Place in an oven proof skillet with 2 tbsp butter.
Sear both sides of the chicken over medium heat, about 2-3 minutes per side, and then remove chicken to a plate.
Add remaining 1 tbsp butter to pan with garlic and cook for 1 minute. Stir arrowroot powder into almond milk. Then stir in chicken broth, almond milk mixture, nutritional yeast, lemon juice and basil.
Bring to a boil, reduce heat and simmer until liquid is reduced and thickened, about 3-5 minutes.
Return chicken to skillet and place in preheated oven for 25 minutes. Meanwhile prepare sautéed vegetables.
Place all sliced vegetables in a skillet with avocado oil and stir-fry until tender. Serve with lemon chicken.