Asparagus and Jack Cheese Frittata

In a large bowl, whisk together eggs, cheese, salt, and freshly ground black pepper until thoroughly combined.
In a large ovenproof frying pan, heat the oil and the butter over medium-high heat. When it foams, add asparagus, season well with salt and freshly ground black pepper, and cook, stirring occasionally, until cooked through, about 5 minutes. Stir in the co
Heat the broiler to high and arrange rack in upper third.