Cut the duck and shrimp into bite-sized pieces.
Dice the avocado, cucumber, red onion, tomato, and bell pepper.
Season the duck and shrimp with salt and pepper, then stir-fry in a pan with oil.
Place rice in a bowl and top with the prepared ingredients.
Mix soy sauce, lemon juice, sesame oil, and sugar to make the sauce.
Drizzle the sauce and sprinkle sesame seeds to finish.