In a medium bowl, whisk together the egg whites until they are foamy. Season with salt and pepper, to taste, and whisk again to blend.
Heat a small nonstick skillet over medium-high heat and add the oil. When the oil is warm, pour in the egg whites. As the eggs set, lift the edges with a heat proof spatula and let the uncooked egg run to the bottom of the pan. When the omelet is cooked through, top with the blueberries. Slide the omelet onto a plate, top with the creme fraiche, and garnish with dill.
Ingredients without discrete measurements such as "Salt, to taste" or "Ice cream, optional" are omitted from analysis. This is because amounts can be highly variable and difficult to determine.