Breakfast Muesli : from Eating With Bird Food (leave off the Greek yogurt to make it vegan)
Rancho Gordo Lila heirloom beans with Greek Tzatziki yogurt sauce
Buttermilk corn muffins. Made for Thanksgiving apps--subbed Greek yogurt for the sour cream, and vinegar + milk for the buttermilk (but ran out of milk!!!!!! Happened to have a little powdered milk, blech) and added a diced jalapeño.
Ranch Pasta Salad. Pra esse calor de Goiás vai muito bem.
This recipe of coconut milk blended with the slightly sweet cashews and tanginess of Greek yogurt make this a great salad dressing for leafy greens.
Blackberry swirl pie: can replace sour cream with Greek yogurt and reduce the sugar to a half cup, and it's just as yummy. I even use whole wheat flour and a whole wheat crust.
black bean soup | smittenkitchen.com - this soup is so stinkin' good, especially with the toasted cumin creme fraiche (though greek yogurt works well too)