Vegan poke bowl with watermelon "tuna"

Ingredients

• 1 tsp sugar
• 1 nori sheets
• 2 kg baby watermelon
• 2 cm ginger
• 1 garlic cloves
• 1 cucumbers
• 1 avocados
• 30 g Micro Greens
• 5 tbsp rice vinegar
• 2 tbsp sesame oil
• 1 tbsp sunflower oil
• 300 g sushi rice
• 2 tbsp soy sauce
• ½ tsp cayenne pepper
• 1 tbsp sesame seeds
• ½ tbsp black sesame seeds
• ¾ tsp salt
• 3 tbsp fried onions