Preheat your oven to 400°F and line a baking sheet with parchment paper.
Peel and dice the potato into small 1/4-inch cubes, then boil in water for 5 minutes until just tender and drain well.
Heat the olive oil in a skillet over medium heat and sauté the diced onion, minced garlic, and grated fresh ginger until fragrant.
Add the ground turkey to the skillet, breaking it into small crumbles with a spatula, and cook until fully browned.
Stir in the par-boiled potatoes, green peas, garam masala, cumin, coriander, turmeric, salt, and pepper, cooking for 3 minutes to meld the flavors.
Cut the whole wheat tortilla into four equal quarters.
Place a portion of the turkey and potato mixture in the center of each tortilla quarter, fold into a triangle shape, and secure the edges with a toothpick.
Place the samosas on the baking sheet, lightly mist with oil spray, and bake for 10-12 minutes until the edges are golden and crispy.
While baking, blend the fresh cilantro, lime juice, and water in a small blender until smooth to create the chutney.
Remove toothpicks from the samosas and serve hot with the cilantro-lime chutney on the side.