Drizzle fruit with lemon juice.
Place yogurt in small bowl or 1-quart Pyrex measuring cup. Whisk in vanilla, turmeric, nutmeg and stevia. Stir well with a large spoon, scraping the sides as needed to incorporate all the seasonings. Taste. Add 1/8 teaspoon additional stevia if a sweeter taste is desired. Add fruit and Sprinkle nuts on top. Note: If slicing fruit in advance of serving, either drizzle it with lemon juice or place it in the bottom of serving containers, then top with "Egg Nog" Yogurt.