You can use your garden's edible flowers as long as they haven't been sprayed with pesticides. They're also sold at many grocery stores; tasty ones include nasturtiums, daylilies, pansies, pinks, borage, roses, or flowers from any culinary herb. Test kitchen tip: For a shortcut, substitute one bag of herb-mix salad for the greens listed here, adding more of your favorites to taste. Get the recipe.