Crumble the yeast and mix with the flour, salt, and sugar. Add the lukewarm water and olive oil, then knead into a smooth dough. Shape into a ball and let rise for 20 minutes.
Roll out the risen dough and place on a baking sheet lined with baking paper. Spread a thin layer of tomato sauce on the dough. Top with torn or cut ham, drained pineapple, and grated pizza cheese.
Bake in a preheated oven at 160°C (320°F) for 18 minutes until the cheese melts and the crust is golden. Serve immediately.