Preheat oven to 400 degrees Fahrenheit.
Place corn tortillas in a single layer on a baking sheet and bake for 4-5 minutes per side until crisp and golden.
In a non-stick skillet over medium-high heat, cook the ground turkey until browned and no longer pink, breaking it into small crumbles.
Stir in the taco seasoning and water, then reduce heat to low and simmer for 5 minutes until the liquid has evaporated.
To assemble, place a portion of the seasoned turkey onto each toasted tortilla.
Top with shredded lettuce, diced tomatoes, shredded cheese, salsa, and a dollop of Greek yogurt as a sour cream substitute.