Asparagus Frittata

From Simply Recipes.

• Ready In: 25 mins
• Serves: 4

Ingredients

• 2  teaspoons olive oil
• 1  small onion, thinly sliced
• 1⁄2 teaspoon salt
• 1  lb asparagus, tough ends snapped off, spears cut diagonally into 1-inch lengths
• 4  large eggs, lightly beaten
• 1  cup  shredded gruyere or 1  cup swiss cheese

Directions

1. Heat olive oil into a 10-inch oven-proof frying pan over medium high heat. Add onions and salt and cook, stirring occasionally, until onions are softened, about 3 minutes.
2. Add asparagus, reduce heat to medium-low, and cook, covered, until the asparagus are barely tender, 6 to 8 minutes.
3. Pour in eggs and cook until almost set, but still runny on top, about 2 minutes. While cooking, pre-heat oven broiler.
4. Sprinkle cheese over eggs and put in oven to broil until cheese is melted and browned, about 3 to 4 minutes.
5. Remove from oven with oven mitts and slide frittata onto a serving plate. Cut into wedges.