Using ingredient few drops green food color

Americana Key Lime Pie

• 9 in pastry shell (baked)
• 4 egg yolks
• 4 egg whites
• 1 env
• 1 cream (heavy)
• 1 pistachio nuts
• 1 few drops green food color
• 240 ml cream (heavy)
• 200 gr sugar
• 120 ml lime juice