These tomatillo-topped Manchego crostini are a delicious and elegant appetizer that is perfect for entertaining. The crostini are made by toasting slices of baguette until crispy, then topping them with a flavorful mixture of tomatillos, onions, garlic, and cilantro. The crostini are finished off with a sprinkle of grated Manchego cheese and a drizzle of olive oil. The combination of the tangy tomatillos, creamy Manchego cheese, and crunchy crostini creates a delightful bite-sized treat.