Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
Heat avocado oil in a skillet over medium heat and add cumin seeds until they sizzle.
Add ground turkey, diced potatoes, and green peas to the skillet, breaking up the meat with a spatula.
Stir in garam masala, turmeric powder, sea salt, and black pepper, cooking until turkey is browned and potatoes are fork-tender.
Cut the whole wheat tortilla into three long strips using kitchen shears.
Place a spoonful of the turkey mixture at the end of a strip and fold diagonally into a triangle shape, repeating for all strips.
Lightly brush the edges of the samosas with a touch of water to seal and place them on the baking sheet.
Bake for 12-15 minutes until the exterior is golden-brown and crispy.
In a small bowl, whisk together the nonfat Greek yogurt, chopped fresh cilantro, and lime juice to create a creamy chutney.
Serve the warm samosas immediately with the cooling yogurt dip on the side.