Heat the olive oil in a large skillet over medium heat. Add the garlic and saute. Mix in the curry powder and red pepper, sauteing to allow it become fragrant. Pour in the coconut milk and slowly mix in the Greek Yogurt, which brings a richness to the dish. Increase the heat and add the snow peas. Cover and let them cook for 5 minutes. Add the beef and let the sauce simmer until the beef is cooked and the sauce has slightly thickened. Add the basil leaves and remove from heat.