Eggs Mimosa with Artichoke Tapenade

eggs, hard boiled

chopped artichoke hearts (from about 1/2 14-ounce can artichokes hearts in water, drained)

capers, drained

pitted green olives, chopped

minced chives or green onion greens, packed

chopped fresh tarragon and/or parsley, packed

mayonnaise

grated Parmesan cheese, packed

ground black pepper

Sprigs of mâche lettuce or baby spinach for garnish