Bun Rieu Chay (Vietnamese Vegan Crab Noodle Soup)

Name: Bun Rieu Chay (Vietnamese Vegan Crab Noodle Soup)
Cook time: 2 h 30 min
Total time: 2 h 30 min
Cuisine: Vietnamese
Ingredients: 1/2 pineapple ((~200g - 7oz)); 1 chayote ((~200g - 7oz)); 1 baro onion; 1-2 carrots ((~200g - 7oz)); 1 small daikon ((~200g - 7oz)); 1 white/yellow onion; 3L (3.2 quarts) water; 1 tsp salt; 4 tomatoes; 1 tbsp minced garlic; 2 tbsp annatto/paprika oil; 2 tbsp salt/vegan fish sauce; 300g (10.5 oz) tofu; 300g (10.5 oz) mushroom (oyster/button/king oyster mushroom); 1 tsp sugar; 1 tsp annatto/paprika oil; 200g (7oz) king oyster mushroom; 200g (7 oz) bean sprouts; 200g (7 oz) lettuce; 1 cup chopped spring onion & cilantro