For the best texture on keto, use bone-in, skin-on chicken thighs because they stay juicy and develop beautifully crisp skin during roasting. Choose a pesto that is made with olive oil and contains no added sugars or starches if you opt for store-bought, and adjust the nuts to your preference using pine nuts, walnuts, or almonds, all of which are keto friendly. To keep the pesto from burning, avoid coating the chicken skin completely before roasting and instead toss the vegetables in pesto partway through cooking and finish the dish with a fresh drizzle of pesto after roasting. Do not overcrowd the sheet pan, and if the vegetables are piled on top of each other, divide everything between two pans so the vegetables roast and caramelize instead of steaming. This recipe is great for meal prep and can be stored in an airtight container in the refrigerator for up to 4 days, then reheated in a 350°F oven until warmed through to help maintain crisp edges on the chicken and vegetables.