Preparation

For the meatballs and sauce :

1. Mix all the ingredients for the dumplings by hand in a bowl.
2. Form 8 to 10 patties (2 per burger)
3. In a frying pan with a little olive oil or butter, cook over a medium heat.
4. Halfway through cooking, when the meatballs are golden brown, add the tomato sauce and baste regularly. Finish cooking over a low heat until the sauce is reduced.

To decorate the little monsters:

1. Cut the cheese into 8-10 triangles to make the teeth (thickness of your choice).
2. Cut the olives into thick slices.

For assembly :

1. Toast the burger buns (optional).
2. Place the sauce and meatballs on the bottom bun.
3. Prick the olives, then pierce the top bun of the burger and add the triangle cheese on the bottom of the toothpick. Place on top of the meatballs.
4. For the side dish: slice the sweet potatoes, season to taste and bake for 20 minutes at 300F.