Add asparagus and 3-4 tablespoons of water to the same skillet. Season the asparagus with a sprinkle each of salt and pepper. Let cook 2-3 minutes, stirring, or until just barely tender. Drain well and add asparagus to bowl with the croutons. Stir in greens, tomatoes, and olives, if using. Drizzle with red wine vinegar and sprinkle with a little salt and pepper. Toss and let sit a minute or so. Drizzle with the other two tablespoons of olive oil; toss. Taste and adjust seasonings, oil and vinegar as necessary. Garnish with the Parmesan shards. Happily munch.