Cut the tofu into cubes and fry until golden. Boil the pork belly until tender, then slice thinly. Wash the herbs and cucumber.
Mix the shrimp paste with 2 teaspoons sugar and squeeze in the juice of half a lime. Whisk until the mixture becomes foamy, then add chili pepper to taste.
Arrange the vermicelli noodles, herbs, cucumber, cilantro, and chili pepper on a platter. Add the fried tofu and sliced pork belly. If you have pork sausage or fried spring rolls, cut them into pieces and add them to the platter as well. Serve everything together.