Eggs with gruyere

2 teaspoons cornstarch 1/3 cup 2% low-fat milk 2 tablespoons butter 3 tablespoons gruyere cheese , grated 1 dash kosher salt , to taste 1 dash black pepper ,[...]

1 small round loaf crusty bread, 2 ends removed, the rest cut into 4 thick slices (about 10 ounces) 3/4 lb asparagus , tough ends snapped off and discarded,[...]

1 tablespoon butter 2 stalks celery , peeled, trimmed and cut into small dice 2 slender leeks , white and light green parts only, trimmed, quartered[...]