Chicken skewers with parmesan

500 g chicken thighs 2 tbsp olive oil 3 tbsp Greek yogurt 1 garlic clove 1 tsp emon zest 1.5 tbsp lemon juice 60 g parmesan cheese, grated 1 tsp oregano ½ tsp sweet paprika Pepper 2 tbsp olive oil (for the pan)

For the tomato sauce with parmesan rind

1 small onion 1 garlic clove 1 tbsp olive oil 250 g canned chopped tomatoes 1 parmesan rind A few basil leaves Salt Pepper