Trio Of Grains With Sweet Corn Coulis

• 6 ears sweet corn
• 2 shiitake mushroom duxelles
• 1 quinoa
• 160 gr couscous (cooked)
• 120 gr basmati rice
• 34 gr tomato paste
• 22 ml lemon juice
• 20 gr tomato concasse
• 14 gr pine nuts
• 12 gr shiitake mushrooms