Replace crackers with these homemade crostinis, and serve with soups, salads, or your favorite toppings.
Preheat oven to 350 degrees. Brush both sides of bread slices with oil. Arrange slices on 2 baking sheets; season with 1 teaspoon salt and 1/2 teaspoon pepper.
Bake until slightly dry on top, about 6 minutes. Flip slices, and continue baking until crisp and golden brown, 6 to 8 minutes more. Let cool.
After flipping the bread slices (in step 2), sprinkle tops evenly with 1/2 cup grated Parmesan cheese.