Prepare rice in boiling salted water according to package instructions. Peel kohlrabis and hollow out slightly. Cook in a pot of boiling salted water for 5-8 minutes. Remove and keep warm.
Peel onions and cut them into strips. Wash and halve the sugar snap peas. Clean, wash and chop the peppers. Fish wash, dab dry and dice. Heat oil in a pan. Fry the fish for about 3 minutes while turning.
Season with salt and pepper. Remove and briefly sauté the vegetables in the hot pan. Deglaze with white wine and refine cream. Season to taste with salt, pepper and curry.
Add the fish to the vegetables and fold in carefully. Fill the kohlrabis with the fish mixture. Arrange rice and kohlrabis. Dust with curry powder.