Prep Time: 10
Cook Time: 20
Serves: Serves: 4
Heat oil in a large nonstick skillet over medium-high heat. Add onion; cook 5 minutes or until tender, stirring occasionally.
Beat together eggs and milk in a medium bowl. Stir in artichoke hearts, olives and pepper; mix well. Stir in 1 cup cheese. Pour mixture into skillet; mix well. Cook 2 minutes.
If skillet is not ovenproof, wrap handle with foil. Transfer skillet to a preheated 350°F oven; bake 12 to 14 minutes or until center is just set. Sprinkle remaining cheese over frittata; return to oven and bake 2 minutes or until cheese is melted. Cut into wedges to serve.