Sparris och Schweizisk Ost Frittata

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1. 1
   Steam asparagus crisp and tender, about 3 to 4 minutes. Thinly slice on the diagonal into 1/2-inch pieces.
2. 2
   Preheat oven to 350°F.
3. 3
   Heat butter in a 10-inch oven safe skillet over medium heat. Stir in shallots and saute until golden, about 4-5 minutes. Add steamed asparagus, salt and pepper.
4. 4
   In a medium bowl whisk eggs, egg whites, grated cheese, salt, and pepper. Add the Swiss cheese and mix well.
5. 5
   Add eggs to the skillet making sure eggs cover the asparagus. Cook on medium for about 4 minutes, until the edges begin to set.
6. 6
   Move the skillet to oven. Cook about 16 to 18 minutes, or until frittata is completely cooked.
7. 7
   Serve hot, cut into 4 equal wedges.