Cool toast; place in an airtight container and store at room temperature for up to 24 hours. For the Basil Pesto and White Beans, transfer the pesto and bean toppings into 2 separate plastic containers with tight-fitting lids. For the Tomato and Olives, transfer topping to a plastic container with tight-fitting lid. Chill toppings for up to 24 hours. Transport in an insulted cooler with ice packs.