Instructions
For polenta boil 800ml of water. Pour corn flour (polenta) into the water, stirring permanently. Reduce heat to low and cook for 15 minutes stirring occasionally.
Heat olive oil in a skillet to medium-high. Put pork, leek and mushrooms to the skillet and cook about 2 minutes stirring. Add tomato sauce, salt, pepper and cook 2 minutes more.
Preheat oven to 200 C/400 F. Cover rimmed baking sheet with cooking spray and put pork mass into it. Cover with polenta layer and put cheese cubes over polenta.
Bake for 15-20 till polenta crust is golden. Serve warm.