Fiz diversos testes com o Binding mas não consegui resultado nenhum.
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="Canola.app.ListaRefeicao" Title="Lista de Refeições">
<ContentPage.Content>
<StackLayout Padding="25">
<ListView ItemsSource="{Binding Refeicoes}">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<ViewCell.View>
<StackLayout>
<Label Text="{Binding Descricao}" FontSize="12" />
<StackLayout Orientation="Horizontal">
<Label Text="Calorias:" FontSize="10" />
<Label Text="{Binding Calorias}" FontSize="10" />
</StackLayout>
</StackLayout>
</ViewCell.View>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
</ContentPage.Content>
</ContentPage>