Asparagus Frittata

Name: Asparagus Frittata
Ingredients: 1 tsp. butter; 2 cups grated white cheddar; 1 small bunch chives, coarsely chopped; Kosher salt to taste; 20 spears asparagus, trimmed; 12 eggs, lightly beaten; 2 small yellow onions, peeled and chopped; 2 small carrots, peeled, trimmed, and finely grated; 1 cup self-rising flour; 1 cup milk; 1⁄4 tsp. freshly ground black pepper