Fresh chervil can be hard to find. Try fresh fennel fronds, dill or chives as a substitute.
Poach asparagus in lightly salted boiling water. Cook just until tender and avoid overcooking. Drain asparagus well and arrange on serving plate. Season with salt and pepper to taste. Mix the melted butter or margarine with lemon juice in a small bowl, and drizzle over asparagus. Top with hard-boiled eggs or tofu and garnish with chopped chervil.