In a large sauté pan over medium high, melt butter and add bread cubes, salt and garlic powder. Toss and stir and flip for up to ten minutes until golden brown. Remove from heat. The centers will be soft and the outsides crispy.
In a small to medium bowl, place mustard, vinegar, sugar, salt, pepper and parsley and mix. While whisking, slowly add oil and continue whisking to emulsify. Set aside.
1. On a large platter or bowl, place mixed lettuce and arrange all other ingredients in a pattern over the greens.
2. Serve with dressing and croutons on the side, OR toss all together including dressing and croutons and serve immediately.