Preheat your oven to 400°F and line a baking sheet with parchment paper.
Boil the diced Yukon gold potato in a small pot of water for 8 minutes until tender, then drain.
In a non-stick skillet over medium heat, add the avocado oil and cumin seeds, allowing them to toast for 30 seconds.
Add the ground turkey and grated fresh ginger to the skillet, cooking until the turkey is fully browned and crumbled.
Stir the cooked potatoes, green peas, garam masala, turmeric, sea salt, and black pepper into the turkey mixture.
Cut the whole wheat tortilla into three even strips.
Fold each strip into a triangle pocket, fill with the turkey and potato mixture, and seal the edges with a small amount of water.
Place the samosas on the prepared baking sheet and bake for 12 to 15 minutes until the edges are golden and crisp.
While the samosas bake, whisk together the Greek yogurt, chopped cilantro, and lemon juice in a small bowl to make the chutney.
Serve the warm samosas immediately with the chilled cilantro chutney on the side.