Veggie spiral pie with spiced tomato sauce & chopped salad

Name: Veggie spiral pie with spiced tomato sauce & chopped salad
Prep time: 50 min
Cook time: 1 h 30 min
Total time: 2 h 20 min
Cuisine: Middle Eastern
Ingredients: 1 tbsp cumin seeds; 1 tbsp coriander seeds; 3 tbsp olive or rapeseed oil; 2 onions , halved and thinly sliced; 100g green lentils; 300g basmati rice; 4 garlic cloves , crushed; 1 nutmeg; ½ tsp ground turmeric; ½ tsp allspice; 400g spinach; small bunch dill , finely chopped; small bunch parsley , finely chopped; small bunch mint , finely chopped; zest 2 lemon , plus juice of 1; 200g pack feta (check pack label to find a vegetarian brand), crumbled; 2 x 270g packs filo pastry (12 sheets in total); 100g butter , melted; 1 egg , beaten; 1 tsp black sesame seed (or regular sesame seeds); Greek yogurt , to serve; 2 x cans chopped tomato; 1 tbsp red wine vinegar; 2 tsp sugar (any will do); 1 tsp ground cinnamon; 2 tbsp olive oil; 1 cucumber; 1 onion , finely chopped; 2 large tomatoes , finely chopped; handful parsley , chopped