Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Place the diced potato in a small pot of boiling water and cook for 5-7 minutes until tender, then drain and set aside.
In a large skillet over medium heat, add the avocado oil and cumin seeds, stirring until they become fragrant.
Add the ground turkey to the skillet, breaking it into small crumbles with a spatula until it is fully browned and cooked through.
Stir in the cooked potatoes, green peas, turmeric, garam masala, sea salt, and black pepper, cooking for another 3 minutes to blend the flavors.
Cut each whole wheat tortilla in half to create semi-circles, then fold each into a cone shape and fill with the turkey and potato mixture.
Lightly dampen the edges of the tortillas with water to seal them shut, then place the samosas on the prepared baking sheet and bake for 10-12 minutes until crispy.
While the samosas bake, whisk together the Greek yogurt, chopped mint, cilantro, and lime juice in a small bowl to create the dipping chutney.