Mash the avocado meat with lemon juice, wasabi paste and salt with a fork. Marinate the radish sticks in the teriyaki sauce. Brush the ciabatta slices with the olive oil and roast them under the grill on the 2nd rack from the top for 4-5 minutes until golden brown.
Let cool down a little, brush with the avocado cream and garnish with radish and sesame seeds.