Start by prepping the meatballs: line a baking sheet or plate with baking paper and set aside. Add the lamb mince, smoked paprika, curry powder, ground coriander and 1 garlic clove to a large mixing bowl. Using slightly wetted hands, squish together to combine.
Shape the mix into around 12 equal-sized meatballs and place onto the prepared baking sheet.
Next, make the tomato sauce: heat the olive oil in a large non-stick frying pan with high sides (or saucepan) set over a low-medium heat. Add the onion and sauté for about 10-12 minutes, stirring occasionally, until soft. Add the remaining minced garlic clove, followed by the tomato purée, and cook for a further 1 minute, stirring often.
Add the tinned tomatoes, season with salt and freshly ground black pepper, to taste, and bring to a simmer. Simmer for about 5 minutes until thickened slightly.
Meanwhile, in a separate non-stick frying pan, add a drizzle of olive oil and place over a medium heat. Add the meatballs and cook for around 8-10 minutes, turning until golden-brown all over. Take care not to overcrowd the pan, it is better to do this in batches if you don’t have one big enough as you want them to go slightly crisp on the outside.
Add the cooked meatballs to the tomato sauce and continue to simmer until cooked through.
In the meantime, make the buttery rice: rinse the basmati rice thoroughly in water then drain well to remove the starch. Tip into a medium-sized saucepan and pour in enough cold water to come 1.25 cm above the ice. Cover with a lid and place over a medium heat. Simmer until almost all the liquid has been absorbed, then turn off the heat and leave to stand, covered, for 5 minutes or until you are ready to serve.
For the tzatziki: grate the cucumber using a box grater. Gather into a ball and squeeze out as much of the excess liquid as you can. Add to a medium-sized bowl with the yoghurt, chopped mint, a squeeze of lemon juice and the minced garlic. Mix well and season to taste. Adjust the balance of the other flavours according to your preference (you can add more mint, lemon and/or garlic depending on how herby, zingy and/or garlicky you want it).
To serve: place a generous spoonful of the rice onto each plate and add a knob of butter on top. Spoon over the meatballs with the tomato sauce. Grate over some lemon zest, to taste, then add a dollop of tzatziki. Sprinkle with lots of freshly chopped parsley. Enjoy!