Preheat oven to 425 degrees Fahrenheit.Slice off the bottom stem of the sprouts and halve them. Toss with the olive oil and kosher salt. Arrange them on a parchment-lined sheet pan so they each have their own space. Roast in the preheated oven for 20 minutes.While the sprouts are roasting, toast the breadcrumbs in a dry pan over medium-low flame, stirring every few minutes.Remove the pan from the oven and toss the sprouts with the dressing while they are still hot. Taste and add salt if needed. Pour into a serving bowl or serve straight out the sheet pan. Sprinkle the toasted breadcrumbs all over.