Make the jalapeño herb sauce: Add the Greek yogurt, jalapeño, garlic, fresh herbs, lemon juice, and a pinch of salt to a blender. Blend until smooth, adding a splash of water to reach a pourable consistency. Taste and adjust seasoning with more lemon juice or salt as needed. Set aside in the fridge until ready to serve.
Make the parsley garlic butter: Combine the melted butter, chopped parsley, and minced garlic in a small bowl and stir well. Set aside.
Make the pork mixture: In a large bowl, combine the ground pork mince, chopped bell pepper, red onion, parsley, jalapeño, minced garlic, and all the spices. Mix well until everything is fully combined.
Assemble the kebabs: Lay the tortillas flat on a clean surface. Spread a thin, even layer of the pork mixture over each tortilla, covering it from edge to edge. Cut each tortilla into 4 long strips. Stack two strips on top of each other and thread tightly onto a skewer, pressing the layers together firmly so they hold their shape during cooking. Repeat with the remaining strips.
Cook the kebabs: Heat a pan or grill over medium-high heat and add a drizzle of oil. Place the skewers in the pan and cook, turning every 3-4 minutes, until crispy and golden on all sides and the pork is cooked through, about 15-18 minutes in total. Brush generously with the parsley garlic butter throughout cooking to build flavour and colour.
Serve: Arrange the hot kebabs on a serving platter and drizzle over the jalapeño herb sauce. Garnish with extra fresh herbs and a squeeze of lemon.