When you have 3 potatoes, make this delicious easy dinner recipe!

You won't believe how easy it is! If you have potatoes, prepare this easy and delicious dinner recipe!

Ingredients:
- 3 potatoes (about 800g)
- 300g mozzarella cheese
- 40g vegetable oil
- 500g minced beef
- 100g onion
- 100g green bell pepper
- 5g salt (1 tsp)
- 40g ketchup
- black pepper