Simple-to-make crostini can be enhanced with any number of toppings. Try one or more of these: Minted Pea and Prosciutto Crostini, Roasted Tomato and Ricotta Crostini, Crostini with Olive Relish, or Pear, Walnut, and Ricotta Crostini.
Preheat oven to 350 degrees. Cut baguette into 1/2-inch-thick slices. On a rimmed baking sheet, toss with olive oil, and season with salt and pepper. Bake in a single layer until crostini are toasted and crisp, about 20 minutes, flipping halfway through.