In a large skillet, brown the ground turkey over medium heat until fully cooked. Drain any excess liquid, then sprinkle in the chili powder and mix well, cooking for an additional 2-3 minutes to allow the flavors to meld. Remove from heat and set aside.
Heat a deep pot with enough oil to submerge the wonton wrappers, bringing it to a temperature of around 350°F (175°C).
While the oil heats, take each wonton wrapper and gently press it into the cups of a muffin tin, creating a shell shape that will hold the filling.
Once the oil is ready, carefully drop the wonton shells into the hot oil, frying them in small batches for about 1-2 minutes until they are crispy and golden. Remove them and place on paper towels to absorb excess oil.
Assemble your tacos by spooning the seasoned turkey into each wonton shell. Layer with Monterey Jack cheese, romaine lettuce, chopped bell peppers, a dollop of Greek yogurt, and a sprinkle of cilantro.
Serve these delightful tacos right away to enjoy their crunchy texture.