Walnut and miso filled eggplant with radish salad

Name: Walnut and miso filled eggplant with radish salad
Ingredients: 4 lebanese eggplants (370g); 2 tablespoon olive oil; 1/2 cup (60g) finely chopped walnuts; 1/2 cup (85g) cooked brown basmati rice; 2 green onions (scallions), sliced thinly; 1 clove garlic, crushed; 1 tablespoon white miso paste; 2 teaspoon light soy sauce; 2 teaspoon mirin; 2 lebanese cucumbers (260g), sliced thinly lengthways; 250 gram red radishes, trimmed, sliced thinly; 2 tablespoon green onions (scallions), sliced thinly lengthways; 2 tablespoon rice vinegar; 1/4 teaspoon sesame oil