Put the prosciutto on cookie sheet and bake at 350° for 12-15 minutes or crispy, cool, crumble and set aside.

For dressing, whisk together the olive oil, balsamic and mustard. In a large bowl, toss together baby spinach, blackberries, feta cheese, cherry tomatoes, green onions and walnuts. Drizzle with dressing and garnish with edible flowers.