How to Make It
Preheat oven to 350°F.
Place eggs, egg whites, milk, cottage cheese, chives, mustard, and pepper in a large bowl; whisk to combine. Set aside.
Heat oil in a 10-inch oven-safe skillet over medium. Add potatoes; stir to coat, and arrange in a single layer. Cover and cook until potatoes are almost tender, about 8 minutes, stirring occasionally. Uncover, add leeks and shallot, and cook 5 minutes, stirring occasionally, until soft.
Scatter salmon evenly over potatoes in pan. Pour egg mixture over salmon and potatoes. Sprinkle goat cheese evenly over top. Bake at 350°F for 25 minutes or until egg mixture is set. Garnish with dill.